1. QObjects that are dynamically created and exposed to JavaScript are not garbage-collected, leading to potentially huge memory leaks. 2. Add support for setting JavaScript exceptions from native C++ code. 3. Add a way to call JavaScript callback functions with parameters that are QObjects being dynamically created from the C++ code. 4. QObjects that are exposed to JavaScript need access to the DOM. 5. Add a way to find out if a script was initiated by the user or not. 6. Add a way to support an object behaving both as a QObject with properties and slots and as a collection of other objects. i.e. both myobject.myslot() and myobject[i] should work. 7. Enable access to objects that are added to the window object through the main frame, from iFrames (same origin policy should still apply).