Quite a few years ago I had a chance to see Bill give a presentation about his research. Not only is he a fantastic speaker, but he has been incredibly passion

Quite a few years ago I had a chance to see Bill give a presentation about his research. Not only is he a fantastic speaker, but he has been incredibly passionate about user interface design since way before it was cool. In this video he describes his own "multi-touch" work: http://www.youtube.com/watch?v=LvyzwN36PSw http://www.youtube.com/watch?v=LvyzwN36PSw