Honestly, I'm just trying to make the possibilities public knowledge. I'm a back-end coder, great at making things work, but I absolutely suck at design. I also suck at Win32, which is how all this Windows control stuff works.
I may or may not pursue the project. It's up on Codeplex because I'm not allowed to sell it, so it makes sense to open source it. I'll gladly accept anyone who wants to contribute as long as they know (more or less) what they're doing.
I also really hope I'm not the only guy doing this. Building a gesture system is not that hard. Making it work gracefully, despite the lack of grace in human movement; making it work with the underlying OS; those are hard.
No plans for audio. Windows already has a great speech recognition system, and the Kinect has an awesome mic array that Windows detects as a mic array.
About a dozen other videos on this project on my YouTube channel.