whootah.com

Head tracking using the wiimote: http://www.youtube.com/watch?v=Jd3-eiid-Uw

Interactive whiteboard using the wiimote: http://www.youtube.com/watch?v=5s5EvhHy7eQ

And other mind blowing innovations http://www.youtube.com/profile_videos?user=jcl5m&p=r

Really great stuff! I've always wondered about the workings of the wii remote. I guess that means that if you point an IR remote at one of the wiimotes and hold down a button or two, you can effect what happens on screen.