I’ve received information on a few spiffy Wiimote projects using my Managed Wiimote Library in the last couple weeks that everyone should check out…
Wiimote Tracking System Using 3 Wiimotes by Nikolai
This project uses 2 Wiimotes as cameras and a 3rd covered in IR LEDs to create a tracking and gesture recognition system. Check out the video below.
A pretty spiffy WPF UI integrating Virtual Earth 3D and the Wiimote. Source code and more information available at the site linked above.