Remember those videos of the really smart asain guy who did a lot of neat tricks with the Wii remote? A few of his videos were posted on here and people were wondering why this guy didn't work for Nintendo, but it looks like he is finally getting some publicity.
If you haven't heard of him, here's some of his videos:
http://youtube.com/watch?v=Jd3-eiid-Uw - tracking your head
http://youtube.com/watch?v=0awjPUkBXOU&feature=related - tracking fingers
http://youtube.com/watch?v=5s5EvhHy7eQ&feature=related - White board using the Wii remote