Recently, Leslie, a very talented programmer had show some interest in some of these nasty hacks I have up here. The BitmapSource pixel pointer hack and the Composited Win32 Control in WPF.
Leslie has taken this to the next level and has produced an interactive Win32 control composited on WPF 3D! If anyone has looked at my older solution, I took the easy route and just put an always-on-top Winform over the WPF area to get interactivity. Leslie took the time to redirect win32 messages to make for more seemless integration.
We have talked briefly about the possibility of starting a codeplex project. I am very excited about what Leslie has accomplished and can not wait to work on it too!