How cool will this be when they get it perfected:

http://www.youtube.com/watch?v=SLw1MXTDlAE


Windows 7 already has a lot of support for multitouch gestures, out of the box. It's just a pain to find a good input device, other than touchscreen. If a ~$50 consumer mouse could provide the capability, I bet it will become mainstream very quickly.

Wow... I initially was going to make a comment about "there's no way it'll be just $50 etc etc" but from the looks of the technologies they're using, it looks very well possible. Very cool.