I had an idea and after 5 hours of work I have a demo to show you guys. Check out this video below. It shows how the accelerometer data is read from an HTC HD2 and being used on the Windows Phone 7 emulator! I just finished this up today and will be posting details and the source code soon. Apologize for the bad quality of the video, I really need to get a better cam. But hey, I had to talk, record and demo all at the same time!