Comment Open source alternative (without the hardware) (Score 1) 274
There's an open source project called Skamleton (http://skamleton.sf.net/) that tries to track people using just common webcams. Though the project is fairly new (and full disclosure, I work on it), it is already working and we're improving it. This is one of the earlier videos: http://www.youtube.com/watch?v=snUgm8lNsaY
We're looking for developers (who isn't?).