diff --git a/applications/present3D/present3D.cpp b/applications/present3D/present3D.cpp
index f4c6ca4cf..98654e1fb 100644
--- a/applications/present3D/present3D.cpp
+++ b/applications/present3D/present3D.cpp
@@ -311,8 +311,7 @@ void addDeviceTo(osgViewer::Viewer& viewer, const std::string& device_name)
     if (dev.valid())
     {
         OSG_INFO << "Adding Device : " << device_name << std::endl;
-        if (dev->getCapabilities() & osgGA::Device::RECEIVE_EVENTS)
-            viewer.addDevice(dev.get());
+        viewer.addDevice(dev.get());
         
         if (dev->getCapabilities() & osgGA::Device::SEND_EVENTS)
             viewer.getEventHandlers().push_front(new ForwardToDeviceEventHandler(dev.get()));
diff --git a/include/osgPresentation/PickEventHandler b/include/osgPresentation/PickEventHandler
index c65d51d43..32031be83 100644
--- a/include/osgPresentation/PickEventHandler
+++ b/include/osgPresentation/PickEventHandler
@@ -56,6 +56,8 @@ class OSGPRESENTATION_EXPORT PickEventHandler : public osgGA::GUIEventHandler
         osgPresentation::Operation          _operation;
 
         JumpData                            _jumpData;
+        std::set<osg::Drawable*>            _drawablesOnPush;
+
 };
 
 }
diff --git a/include/osgPresentation/SlideEventHandler b/include/osgPresentation/SlideEventHandler
index 4d6ab3a2b..802b0dd13 100644
--- a/include/osgPresentation/SlideEventHandler
+++ b/include/osgPresentation/SlideEventHandler
@@ -36,7 +36,8 @@ enum Operation
     RUN,
     LOAD,
     EVENT,
-    JUMP
+    JUMP,
+    FORWARD_EVENT
 };
 
 struct JumpData
diff --git a/include/osgViewer/api/IOS/GraphicsWindowIOS b/include/osgViewer/api/IOS/GraphicsWindowIOS
index 335fa7b5b..a02a7e13a 100644
--- a/include/osgViewer/api/IOS/GraphicsWindowIOS
+++ b/include/osgViewer/api/IOS/GraphicsWindowIOS
@@ -149,7 +149,8 @@ class GraphicsWindowIOS : public osgViewer::GraphicsWindow
                 :   _windowOrView(window_or_view),
                     _deviceOrientationFlags(orientationFlags),
                     _viewContentScaleFactor(scaleFactor),
-                    _createTransparentView(false)
+                    _createTransparentView(false),
+                    _useRetainedBacking(false)
                 {
                 }
                 
@@ -161,12 +162,17 @@ class GraphicsWindowIOS : public osgViewer::GraphicsWindow
                 
                 bool getCreateTransparentView() { return _createTransparentView; }
                 void setCreateTransparentView(bool b) { _createTransparentView = b; }
+
+                bool getUseRetainedBacking() { return _useRetainedBacking; }
+                void setUseRetainedBacking(bool b) { _useRetainedBacking = b; }
+
             private:
 
                 UIView*                _windowOrView;
                 DeviceOrientationFlags _deviceOrientationFlags;
                 float                  _viewContentScaleFactor; 
                 bool                   _createTransparentView;
+                bool                   _useRetainedBacking; 
         
             friend class GraphicsWindowIOS;
 
diff --git a/src/osgDB/Registry.cpp b/src/osgDB/Registry.cpp
index abcffb577..6d0178a23 100644
--- a/src/osgDB/Registry.cpp
+++ b/src/osgDB/Registry.cpp
@@ -1794,7 +1794,7 @@ ReaderWriter* Registry::getReaderWriterForProtocolAndExtension(const std::string
 {
     // try first the registered ReaderWriter
     ReaderWriter* result = getReaderWriterForExtension(extension);
-    if (result->acceptsProtocol(protocol))
+    if (result && result->acceptsProtocol(protocol))
         return result;
     
     result = NULL;
diff --git a/src/osgGA/EventQueue.cpp b/src/osgGA/EventQueue.cpp
index 557bd5fa3..f1bdba123 100644
--- a/src/osgGA/EventQueue.cpp
+++ b/src/osgGA/EventQueue.cpp
@@ -409,7 +409,7 @@ GUIEventAdapter*  EventQueue::touchBegan(unsigned int id, GUIEventAdapter::Touch
     {
         // emulate left mouse button press
 
-        _accumulateEventState->setButtonMask((1) | _accumulateEventState->getButtonMask());
+        _accumulateEventState->setButtonMask(GUIEventAdapter::LEFT_MOUSE_BUTTON | _accumulateEventState->getButtonMask());
         _accumulateEventState->setX(x);
         _accumulateEventState->setY(y);
     }
@@ -418,7 +418,9 @@ GUIEventAdapter*  EventQueue::touchBegan(unsigned int id, GUIEventAdapter::Touch
     event->setEventType(GUIEventAdapter::PUSH);
     event->setTime(time);
     event->addTouchPoint(id, phase, x, y, 0);
-
+    if(_firstTouchEmulatesMouse)
+        event->setButton(GUIEventAdapter::LEFT_MOUSE_BUTTON);
+    
     addEvent(event);
 
     return event;
@@ -446,7 +448,7 @@ GUIEventAdapter*  EventQueue::touchEnded(unsigned int id, GUIEventAdapter::Touch
 {
     if (_firstTouchEmulatesMouse)
     {
-        _accumulateEventState->setButtonMask(~(1) & _accumulateEventState->getButtonMask());
+        _accumulateEventState->setButtonMask(~GUIEventAdapter::LEFT_MOUSE_BUTTON & _accumulateEventState->getButtonMask());
         _accumulateEventState->setX(x);
         _accumulateEventState->setY(y);
     }
@@ -455,6 +457,9 @@ GUIEventAdapter*  EventQueue::touchEnded(unsigned int id, GUIEventAdapter::Touch
     event->setEventType(GUIEventAdapter::RELEASE);
     event->setTime(time);
     event->addTouchPoint(id, phase, x, y, tap_count);
+    if(_firstTouchEmulatesMouse)
+        event->setButton(GUIEventAdapter::LEFT_MOUSE_BUTTON);
+    
     addEvent(event);
 
     return event;
diff --git a/src/osgPlugins/QTKit/OSXQTKitVideo.mm b/src/osgPlugins/QTKit/OSXQTKitVideo.mm
index 6ce03ce1e..c1b8da16a 100644
--- a/src/osgPlugins/QTKit/OSXQTKitVideo.mm
+++ b/src/osgPlugins/QTKit/OSXQTKitVideo.mm
@@ -99,9 +99,19 @@ void OSXQTKitVideo::initializeQTKit()
         if (![NSThread isMainThread]) {
             dispatch_apply(1, dispatch_get_main_queue(), ^(size_t n) {
                 EnterMovies();
-                QTMovie* movie = [QTMovie movie];
-                // release missing by intent, gets released by the block!
-                movie = NULL;
+                {
+                    // workaround for gcc bug. See discussion here
+                    // http://stackoverflow.com/questions/6525928/objective-c-block-vs-objective-c-block
+                    
+                    #if (GCC_VERSION <= 40201) && !(__clang__)
+                        QTMovie* ::temp_movie = [QTMovie movie];
+                    #else
+                        QTMovie* temp_movie = [QTMovie movie];
+                    #endif
+                    
+                    // release missing by intent, gets released by the block!
+                    temp_movie = NULL;
+                }
             });
         }
         else
diff --git a/src/osgPlugins/RestHttpDevice/RestHttpDevice.cpp b/src/osgPlugins/RestHttpDevice/RestHttpDevice.cpp
index c4bf58632..7e556479b 100755
--- a/src/osgPlugins/RestHttpDevice/RestHttpDevice.cpp
+++ b/src/osgPlugins/RestHttpDevice/RestHttpDevice.cpp
@@ -17,6 +17,7 @@
 #include <osgDB/FileUtils>
 #include "request_handler.hpp"
 
+namespace RestHttp {
 
 
 class StandardRequestHandler : public RestHttpDevice::RequestHandler {
@@ -254,6 +255,7 @@ bool RequestHandlerDispatcherCallback::operator()(const std::string& request_pat
     return _parent->handleRequest(request_path, reply);
 }
 
+}
 
 RestHttpDevice::RestHttpDevice(const std::string& listening_address, const std::string& listening_port, const std::string& doc_root)
     : osgGA::Device()
@@ -274,20 +276,20 @@ RestHttpDevice::RestHttpDevice(const std::string& listening_address, const std::
     {
         OSG_WARN << "RestHttpDevice :: warning, can't locate document-root '" << doc_root << "'for the http-server, starting anyway" << std::endl;
     }
-    _server.setCallback(new RequestHandlerDispatcherCallback(this));
+    _server.setCallback(new RestHttp::RequestHandlerDispatcherCallback(this));
     
-    addRequestHandler(new KeyCodeRequestHandler(false));
-    addRequestHandler(new KeyCodeRequestHandler(true));
+    addRequestHandler(new RestHttp::KeyCodeRequestHandler(false));
+    addRequestHandler(new RestHttp::KeyCodeRequestHandler(true));
     
-    addRequestHandler(new SetMouseInputRangeRequestHandler());
-    addRequestHandler(new MouseMotionRequestHandler());
-    addRequestHandler(new MouseButtonRequestHandler(MouseButtonRequestHandler::PRESS));
-    addRequestHandler(new MouseButtonRequestHandler(MouseButtonRequestHandler::RELEASE));
-    addRequestHandler(new MouseButtonRequestHandler(MouseButtonRequestHandler::DOUBLE_PRESS));
+    addRequestHandler(new RestHttp::SetMouseInputRangeRequestHandler());
+    addRequestHandler(new RestHttp::MouseMotionRequestHandler());
+    addRequestHandler(new RestHttp::MouseButtonRequestHandler(RestHttp::MouseButtonRequestHandler::PRESS));
+    addRequestHandler(new RestHttp::MouseButtonRequestHandler(RestHttp::MouseButtonRequestHandler::RELEASE));
+    addRequestHandler(new RestHttp::MouseButtonRequestHandler(RestHttp::MouseButtonRequestHandler::DOUBLE_PRESS));
     
-    addRequestHandler(new HomeRequestHandler());
+    addRequestHandler(new RestHttp::HomeRequestHandler());
     
-    addRequestHandler(new StandardRequestHandler());
+    addRequestHandler(new RestHttp::StandardRequestHandler());
     
     // start the thread
     start();
diff --git a/src/osgPlugins/curl/ReaderWriterCURL.cpp b/src/osgPlugins/curl/ReaderWriterCURL.cpp
index ac38ea8db..c83d5bdc1 100644
--- a/src/osgPlugins/curl/ReaderWriterCURL.cpp
+++ b/src/osgPlugins/curl/ReaderWriterCURL.cpp
@@ -706,14 +706,33 @@ bool ReaderWriterCURL::read(std::istream& fin, std::string& destination) const
 }
 #endif
 
+size_t empty_write_data(const char *buffer, size_t size, size_t nmemb, char
+*userp)
+{
+    return size*nmemb;
+}
+
 bool ReaderWriterCURL::fileExists(const std::string& filename, const osgDB::Options* options) const
 {
     if (osgDB::containsServerAddress(filename))
     {
+        std::string data;
         OSG_NOTICE<<"Checking if file exists using curl plugin: "<<filename<<std::endl;
+        CURL* curl_handle = curl_easy_init();
+        curl_easy_setopt(curl_handle, CURLOPT_URL, filename.c_str());
+        curl_easy_setopt(curl_handle, CURLOPT_NOBODY, 1);
+        curl_easy_setopt(curl_handle, CURLOPT_HEADER, 1);
+        curl_easy_setopt(curl_handle, CURLOPT_FILETIME, 1);
+        curl_easy_setopt(curl_handle, CURLOPT_WRITEFUNCTION, (void*)&empty_write_data);
 
-        ReadResult result = readFile(OBJECT,filename,options);
-        return result.status()==osgDB::ReaderWriter::ReadResult::FILE_LOADED;
+        int result = curl_easy_perform(curl_handle);
+        
+        long http_return_code(0);
+        curl_easy_getinfo(curl_handle, CURLINFO_RESPONSE_CODE, &http_return_code);
+        
+        curl_easy_cleanup(curl_handle);
+        
+        return ((result == 0) && ((http_return_code == 200) || (http_return_code == 0)));
     }
     else
     {
diff --git a/src/osgPlugins/osc/OscReceivingDevice.cpp b/src/osgPlugins/osc/OscReceivingDevice.cpp
index efe4aa5a2..355cce2fc 100755
--- a/src/osgPlugins/osc/OscReceivingDevice.cpp
+++ b/src/osgPlugins/osc/OscReceivingDevice.cpp
@@ -21,6 +21,7 @@
 #include "osc/OscPrintReceivedElements.h"
 #include "osc/OscHostEndianness.h"
 
+namespace OscDevice {
 
 template <class T, int SIZE>
 struct NativeTypeTraits {
@@ -709,6 +710,7 @@ public:
 };
 
 
+} // end of namespace
 
 
 
@@ -732,32 +734,32 @@ OscReceivingDevice::OscReceivingDevice(const std::string& server_address, int li
     
     _socket = new UdpListeningReceiveSocket(IpEndpointName( server_address.c_str(), listening_port ), this);
     
-    addRequestHandler(new KeyCodeRequestHandler(false));
-    addRequestHandler(new KeyCodeRequestHandler(true));
-    addRequestHandler(new KeyPressAndReleaseRequestHandler());
+    addRequestHandler(new OscDevice::KeyCodeRequestHandler(false));
+    addRequestHandler(new OscDevice::KeyCodeRequestHandler(true));
+    addRequestHandler(new OscDevice::KeyPressAndReleaseRequestHandler());
     
-    addRequestHandler(new SetMouseInputRangeRequestHandler());
-    addRequestHandler(new SetMouseOrientationRequestHandler());
+    addRequestHandler(new OscDevice::SetMouseInputRangeRequestHandler());
+    addRequestHandler(new OscDevice::SetMouseOrientationRequestHandler());
     
-    MouseMotionRequestHandler* mm_handler = new MouseMotionRequestHandler();
+    OscDevice::MouseMotionRequestHandler* mm_handler = new OscDevice::MouseMotionRequestHandler();
     addRequestHandler(mm_handler);
-    addRequestHandler(new MouseButtonRequestHandler(MouseButtonRequestHandler::PRESS));
-    addRequestHandler(new MouseButtonRequestHandler(MouseButtonRequestHandler::RELEASE));
-    addRequestHandler(new MouseButtonRequestHandler(MouseButtonRequestHandler::DOUBLE_PRESS));
-    addRequestHandler(new MouseScrollRequestHandler());
+    addRequestHandler(new OscDevice::MouseButtonRequestHandler(OscDevice::MouseButtonRequestHandler::PRESS));
+    addRequestHandler(new OscDevice::MouseButtonRequestHandler(OscDevice::MouseButtonRequestHandler::RELEASE));
+    addRequestHandler(new OscDevice::MouseButtonRequestHandler(OscDevice::MouseButtonRequestHandler::DOUBLE_PRESS));
+    addRequestHandler(new OscDevice::MouseScrollRequestHandler());
     
-    addRequestHandler(new MouseButtonToggleRequestHandler("1", mm_handler));
-    addRequestHandler(new MouseButtonToggleRequestHandler("2", mm_handler));
-    addRequestHandler(new MouseButtonToggleRequestHandler("3", mm_handler));
+    addRequestHandler(new OscDevice::MouseButtonToggleRequestHandler("1", mm_handler));
+    addRequestHandler(new OscDevice::MouseButtonToggleRequestHandler("2", mm_handler));
+    addRequestHandler(new OscDevice::MouseButtonToggleRequestHandler("3", mm_handler));
     
-    addRequestHandler(new PenPressureRequestHandler());
-    addRequestHandler(new PenOrientationRequestHandler());
-    addRequestHandler(new PenProximityRequestHandler(true));
-    addRequestHandler(new PenProximityRequestHandler(false));
+    addRequestHandler(new OscDevice::PenPressureRequestHandler());
+    addRequestHandler(new OscDevice::PenOrientationRequestHandler());
+    addRequestHandler(new OscDevice::PenProximityRequestHandler(true));
+    addRequestHandler(new OscDevice::PenProximityRequestHandler(false));
     
-    addRequestHandler(new StandardRequestHandler("/osg/set_user_value", true));
+    addRequestHandler(new OscDevice::StandardRequestHandler("/osg/set_user_value", true));
     
-    addRequestHandler(new StandardRequestHandler("", false));
+    addRequestHandler(new OscDevice::StandardRequestHandler("", false));
     
     start();
 }
diff --git a/src/osgPlugins/osc/OscSendingDevice.cpp b/src/osgPlugins/osc/OscSendingDevice.cpp
index 268b80f01..eba58273a 100755
--- a/src/osgPlugins/osc/OscSendingDevice.cpp
+++ b/src/osgPlugins/osc/OscSendingDevice.cpp
@@ -24,7 +24,6 @@ OscSendingDevice::OscSendingDevice(const std::string& address, int port)
     , _transmitSocket(IpEndpointName(address.c_str(), port))
     , _buffer(new  char[BUFFER_SIZE])
     , _oscStream(_buffer, BUFFER_SIZE)
-    , _firstRun(true)
 {
     setCapabilities(SEND_EVENTS);
     
@@ -50,12 +49,14 @@ void OscSendingDevice::sendEvent(const osgGA::GUIEventAdapter &ea)
     switch(ea.getEventType())
     {
         case osgGA::GUIEventAdapter::RESIZE:
-            sendInit(ea);
+            _oscStream << osc::BeginMessage("/osgga/resize") << ea.getWindowX() << ea.getWindowY() << ea.getWindowWidth() << ea.getWindowHeight() << osc::EndMessage;
             do_send = true;
             break;
             
         case osgGA::GUIEventAdapter::SCROLL:
+            beginSendInputRange(ea);
             _oscStream << osc::BeginMessage("/osgga/mouse/scroll") << ea.getScrollingMotion() << ea.getScrollingDeltaX() << ea.getScrollingDeltaY() << osc::EndMessage;
+            _oscStream << osc::EndBundle;
             do_send = true;
             break;
         
@@ -95,32 +96,31 @@ void OscSendingDevice::sendEvent(const osgGA::GUIEventAdapter &ea)
             break;
         
         case osgGA::GUIEventAdapter::PUSH:
+            beginSendInputRange(ea);
             _oscStream << osc::BeginMessage("/osgga/mouse/press") << ea.getX() << ea.getY() << getButtonNum(ea)  << osc::EndMessage;
+            _oscStream << osc::EndBundle;
             do_send = true;
             break;
             
         case osgGA::GUIEventAdapter::RELEASE:
+            beginSendInputRange(ea);
             _oscStream << osc::BeginMessage("/osgga/mouse/release") << ea.getX() << ea.getY() << getButtonNum(ea)  << osc::EndMessage;
+            _oscStream << osc::EndBundle;
             do_send = true;
             break;
         
         case osgGA::GUIEventAdapter::DOUBLECLICK:
+            beginSendInputRange(ea);
             _oscStream << osc::BeginMessage("/osgga/mouse/doublepress") << ea.getX() << ea.getY() << getButtonNum(ea) << osc::EndMessage;
+            _oscStream << osc::EndBundle;
             do_send = true;
             break;
             
         case osgGA::GUIEventAdapter::MOVE:
-            if (_firstRun)
-            {
-                _firstRun = false;
-                sendInit(ea);
-                do_send = true;
-                break;
-            }
-            // break missing by intent;
-            
         case osgGA::GUIEventAdapter::DRAG:
+            beginSendInputRange(ea);
             _oscStream << osc::BeginMessage("/osgga/mouse/motion") << ea.getX() << ea.getY() << osc::EndMessage;
+            _oscStream << osc::EndBundle;
             do_send = true;
             break;
         
@@ -150,6 +150,7 @@ void OscSendingDevice::sendEvent(const osgGA::GUIEventAdapter &ea)
             break;
         
     }
+    
     if (do_send)
     {
         OSG_INFO << "OscDevice :: sending event per OSC " << std::endl;
@@ -178,13 +179,11 @@ int OscSendingDevice::getButtonNum(const osgGA::GUIEventAdapter& ea)
     return -1;
 }
 
-void OscSendingDevice::sendInit(const osgGA::GUIEventAdapter &ea)
+void OscSendingDevice::beginSendInputRange(const osgGA::GUIEventAdapter &ea)
 {
     _oscStream << osc::BeginBundle();
-    _oscStream << osc::BeginMessage("/osgga/resize") << ea.getWindowX() << ea.getWindowY() << ea.getWindowWidth() << ea.getWindowHeight() << osc::EndMessage;
     _oscStream << osc::BeginMessage("/osgga/mouse/set_input_range") << ea.getXmin() << ea.getYmin() << ea.getXmax() << ea.getYmax() << osc::EndMessage;
     _oscStream << osc::BeginMessage("/osgga/mouse/y_orientation_increasing_upwards") << (bool)(ea.getMouseYOrientation() == osgGA::GUIEventAdapter::Y_INCREASING_UPWARDS)  << osc::EndMessage;
-    _oscStream << osc::EndBundle;
 }
 
 
diff --git a/src/osgPlugins/osc/OscSendingDevice.hpp b/src/osgPlugins/osc/OscSendingDevice.hpp
index cac02dd7d..fccf62d27 100755
--- a/src/osgPlugins/osc/OscSendingDevice.hpp
+++ b/src/osgPlugins/osc/OscSendingDevice.hpp
@@ -27,13 +27,12 @@ public:
     virtual void sendEvent(const osgGA::GUIEventAdapter &ea);
     
 private:
-    void sendInit(const osgGA::GUIEventAdapter& ea);
+    void beginSendInputRange(const osgGA::GUIEventAdapter& ea);
     int getButtonNum(const osgGA::GUIEventAdapter& ea);
     void sendUserDataContainer(const std::string& key, const osg::UserDataContainer* udc, bool asBundle);
     std::string transliterateKey(const std::string& key) const;
     UdpTransmitSocket _transmitSocket;
     char* _buffer;
     osc::OutboundPacketStream _oscStream;
-    bool _firstRun;    
 };
 
diff --git a/src/osgPlugins/p3d/ReaderWriterP3D.cpp b/src/osgPlugins/p3d/ReaderWriterP3D.cpp
index 0bf8ddbe1..de4ef1b6c 100644
--- a/src/osgPlugins/p3d/ReaderWriterP3D.cpp
+++ b/src/osgPlugins/p3d/ReaderWriterP3D.cpp
@@ -1458,6 +1458,13 @@ void ReaderWriterP3DXML::parseLayer(osgPresentation::SlideShowConstructor& const
             OSG_INFO<<"click_to_run ["<<cur->contents<<"]"<<std::endl;
             constructor.layerClickToDoOperation(cur->contents,osgPresentation::RUN, jumpData);
         }
+        else if (cur->name == "forward_mouse_event_to_device")
+        {
+            osgPresentation::JumpData jumpData;
+            
+            OSG_ALWAYS<<"forward_mouse_event_to_device ["<<cur->contents<<"]"<<std::endl;
+            constructor.layerClickToDoOperation(cur->contents,osgPresentation::FORWARD_EVENT, jumpData);
+        }
         else if (cur->name == "click_to_load")
         {
             osgPresentation::JumpData jumpData;
@@ -2217,7 +2224,7 @@ class MyReadFileCallback : public virtual osgDB::ReadFileCallback
                 ++itr)
             {
                 const std::string& path = *itr;
-                std::string newpath = path.empty() ? filename : osgDB::concatPaths(path, filename);
+                std::string newpath = osgDB::containsServerAddress(filename) ? filename : path.empty() ? filename : osgDB::concatPaths(path, filename);
                 osgDB::ReaderWriter::ReadResult result;
                 if (osgDB::containsServerAddress(newpath))
                 {
@@ -2381,7 +2388,8 @@ osgDB::ReaderWriter::ReadResult ReaderWriterP3DXML::readNode(std::istream& fin,
 
     osg::ref_ptr<osgDB::ReaderWriter::Options> local_opt = options ? static_cast<osgDB::ReaderWriter::Options*>(options->clone(osg::CopyOp::SHALLOW_COPY)) : new Options;
     local_opt->setReadFileCallback(new MyReadFileCallback);
-
+    local_opt->setFindFileCallback(new MyFindFileCallback);
+        
     return readNode(input, local_opt.get());
 }
 
diff --git a/src/osgPresentation/PickEventHandler.cpp b/src/osgPresentation/PickEventHandler.cpp
index d1cd0fb4b..807a7f876 100644
--- a/src/osgPresentation/PickEventHandler.cpp
+++ b/src/osgPresentation/PickEventHandler.cpp
@@ -16,6 +16,7 @@
 #include <osgViewer/Viewer>
 #include <osg/Notify>
 #include <osgDB/FileUtils>
+#include <osg/io_utils>
 
 #include <stdlib.h>
 
@@ -23,7 +24,8 @@ using namespace osgPresentation;
 
 PickEventHandler::PickEventHandler(osgPresentation::Operation operation, const JumpData& jumpData):
     _operation(operation),
-    _jumpData(jumpData)
+    _jumpData(jumpData),
+    _drawablesOnPush()
 {
     OSG_INFO<<"PickEventHandler::PickEventHandler(operation="<<operation<<", jumpData.relativeJump="<<jumpData.relativeJump<<", jumpData.="<<jumpData.slideNum<<", jumpData.layerNum="<<jumpData.layerNum<<std::endl;
 }
@@ -31,7 +33,8 @@ PickEventHandler::PickEventHandler(osgPresentation::Operation operation, const J
 PickEventHandler::PickEventHandler(const std::string& str, osgPresentation::Operation operation, const JumpData& jumpData):
     _command(str),
     _operation(operation),
-    _jumpData(jumpData)
+    _jumpData(jumpData),
+    _drawablesOnPush()
 {
     OSG_INFO<<"PickEventHandler::PickEventHandler(str="<<str<<", operation="<<operation<<", jumpData.relativeJump="<<jumpData.relativeJump<<", jumpData.="<<jumpData.slideNum<<", jumpData.layerNum="<<jumpData.layerNum<<std::endl;
 }
@@ -39,7 +42,8 @@ PickEventHandler::PickEventHandler(const std::string& str, osgPresentation::Oper
 PickEventHandler::PickEventHandler(const osgPresentation::KeyPosition& keyPos, const JumpData& jumpData):
     _keyPos(keyPos),
     _operation(osgPresentation::EVENT),
-    _jumpData(jumpData)
+    _jumpData(jumpData),
+    _drawablesOnPush()
 {
     OSG_INFO<<"PickEventHandler::PickEventHandler(keyPos="<<keyPos._key<<", jumpData.relativeJump="<<jumpData.relativeJump<<", jumpData.="<<jumpData.slideNum<<", jumpData.layerNum="<<jumpData.layerNum<<std::endl;
 }
@@ -53,8 +57,13 @@ bool PickEventHandler::handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIActionA
     {
         case(osgGA::GUIEventAdapter::MOVE):
         case(osgGA::GUIEventAdapter::PUSH):
+        case(osgGA::GUIEventAdapter::DRAG):
         case(osgGA::GUIEventAdapter::RELEASE):
         {
+            if(ea.getEventType() == osgGA::GUIEventAdapter::PUSH)
+            {
+                _drawablesOnPush.clear();
+            }
             osgViewer::Viewer* viewer = dynamic_cast<osgViewer::Viewer*>(&aa);
             osgUtil::LineSegmentIntersector::Intersections intersections;
             if (viewer->computeIntersections(ea.getX(),ea.getY(), nv->getNodePath(), intersections))
@@ -63,14 +72,48 @@ bool PickEventHandler::handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIActionA
                     hitr!=intersections.end();
                     ++hitr)
                 {
-                    if (ea.getEventType()==osgGA::GUIEventAdapter::MOVE)
+                    if (_operation == FORWARD_EVENT)
                     {
-                        OSG_INFO<<"Tooltip..."<<std::endl;
+                        osg::ref_ptr<osgGA::GUIEventAdapter> cloned_ea = osg::clone(&ea);
+                        const osg::BoundingBox bb(hitr->drawable->getBound());
+                        const osg::Vec3& p(hitr->localIntersectionPoint);
+                        
+                        float transformed_x = (p.x() - bb.xMin()) / (bb.xMax() - bb.xMin());
+                        float transformed_y = (p.z() - bb.zMin()) / (bb.zMax() - bb.zMin());
+                        
+                        cloned_ea->setX(ea.getXmin() + transformed_x * (ea.getXmax() - ea.getXmin()));
+                        cloned_ea->setY(ea.getYmin() + transformed_y * (ea.getYmax() - ea.getYmin()));
+                        cloned_ea->setMouseYOrientation(osgGA::GUIEventAdapter::Y_INCREASING_UPWARDS);
+                        
+                        // std::cout << transformed_x << "/" << transformed_x << " -> " << cloned_ea->getX() << "/" <<cloned_ea->getY() << std::endl;
+                        
+                        
+                        // dispatch cloned event to devices
+                        osgViewer::View::Devices& devices = viewer->getDevices();
+                        for(osgViewer::View::Devices::iterator i = devices.begin(); i != devices.end(); ++i)
+                        {
+                            if((*i)->getCapabilities() & osgGA::Device::SEND_EVENTS)
+                            {
+                                (*i)->sendEvent(*cloned_ea);
+                            }
+                        }
                     }
-                    else if (ea.getEventType()==osgGA::GUIEventAdapter::RELEASE)
+                    else 
                     {
-                        doOperation();
-                        return true;
+                        if (ea.getEventType()==osgGA::GUIEventAdapter::PUSH)
+                        {
+                            _drawablesOnPush.insert( hitr->drawable );
+                        }
+                        else if (ea.getEventType()==osgGA::GUIEventAdapter::MOVE)
+                        {
+                            OSG_INFO<<"Tooltip..."<<std::endl;
+                        }
+                        else if (ea.getEventType()==osgGA::GUIEventAdapter::RELEASE)
+                        {
+                            if (_drawablesOnPush.find(hitr->drawable) != _drawablesOnPush.end())
+                                doOperation();
+                            return true;
+                        }
                     }
                 }
             }
@@ -178,6 +221,8 @@ void PickEventHandler::doOperation()
             OSG_INFO<<"Requires jump "<<std::endl;
             break;
         }
+        case(osgPresentation::FORWARD_EVENT):
+            break;
     }
 
     if (_jumpData.requiresJump())
diff --git a/src/osgViewer/CompositeViewer.cpp b/src/osgViewer/CompositeViewer.cpp
index 7dc266a83..514c415b8 100644
--- a/src/osgViewer/CompositeViewer.cpp
+++ b/src/osgViewer/CompositeViewer.cpp
@@ -933,7 +933,8 @@ void CompositeViewer::eventTraversal()
             ++eitr)
         {
             osgGA::Device* es = eitr->get();
-            es->checkEvents();
+            if (es->getCapabilities() & osgGA::Device::RECEIVE_EVENTS)
+                es->checkEvents();
 
             // open question, will we need to reproject mouse coordinates into current view's coordinate frame as is down for GraphicsWindow provided events?
             // for now assume now and just get the events directly without any reprojection.
diff --git a/src/osgViewer/GraphicsWindowIOS.mm b/src/osgViewer/GraphicsWindowIOS.mm
index 51a753625..a54e372bb 100644
--- a/src/osgViewer/GraphicsWindowIOS.mm
+++ b/src/osgViewer/GraphicsWindowIOS.mm
@@ -271,16 +271,18 @@ typedef std::map<void*, unsigned int> TouchPointsIdMapping;
         if (_win->getTraits()->inheritedWindowData.valid())
             win_data = dynamic_cast<osgViewer::GraphicsWindowIOS::WindowData*>(_win->getTraits()->inheritedWindowData.get());
         
-        eaglLayer.opaque = win_data ? !win_data->getCreateTransparentView() : YES ;
+        eaglLayer.opaque = win_data ? !win_data->getCreateTransparentView() : YES;
+        bool retained_backing = win_data ? win_data->getUseRetainedBacking() : NO;
+
         if(_win->getTraits()->alpha > 0)
         {
             //create layer with alpha channel RGBA8
             eaglLayer.drawableProperties = [NSDictionary dictionaryWithObjectsAndKeys:
-                                            [NSNumber numberWithBool:NO], kEAGLDrawablePropertyRetainedBacking, kEAGLColorFormatRGBA8, kEAGLDrawablePropertyColorFormat, nil];
+                                            [NSNumber numberWithBool:retained_backing], kEAGLDrawablePropertyRetainedBacking, kEAGLColorFormatRGBA8, kEAGLDrawablePropertyColorFormat, nil];
         }else{
             //else no alpha, IOS uses RBG565
             eaglLayer.drawableProperties = [NSDictionary dictionaryWithObjectsAndKeys:
-                                            [NSNumber numberWithBool:NO], kEAGLDrawablePropertyRetainedBacking, kEAGLColorFormatRGB565, kEAGLDrawablePropertyColorFormat, nil];
+                                            [NSNumber numberWithBool:retained_backing], kEAGLDrawablePropertyRetainedBacking, kEAGLColorFormatRGB565, kEAGLDrawablePropertyColorFormat, nil];
 
         }
     }
diff --git a/src/osgViewer/Viewer.cpp b/src/osgViewer/Viewer.cpp
index 419da8d13..86e2dd8d0 100644
--- a/src/osgViewer/Viewer.cpp
+++ b/src/osgViewer/Viewer.cpp
@@ -651,7 +651,8 @@ void Viewer::eventTraversal()
         ++eitr)
     {
         osgGA::Device* es = eitr->get();
-        es->checkEvents();
+        if (es->getCapabilities() & osgGA::Device::RECEIVE_EVENTS)
+            es->checkEvents();
 
         // open question, will we need to reproject mouse coordinates into current view's coordinate frame as is down for GraphicsWindow provided events?
         // for now assume now and just get the events directly without any reprojection.