It's really more of a need than a want...

[smferris]

This should be the default user interface device for all computers. It's such an amazing improvement over keyboards and mice. Watch the video. If you're rich, fund the man's research, or better yet, throw money at this and build a commercial product. I want one. Very badly. I would pay a ridiculous amount of money to own one of these. I'm sure many other computer geeks would too.

http://ted.com/tedtalks/tedtalksplayer.cfm?key=j_han

Same video also on youtube: http://www.youtube.com/watch?v=PLhMVNdplJc

http://cs.nyu.edu/~jhan/ftirtouch/
http://cs.nyu.edu/~jhan/ftirsense/