multi-touch-screen*

fast, acurate, scaleable multiple-point touch screens; i agree with the inventor, i can see this changing the way people interact with machines. Jeff Han demonstraits his product to an audience, and goes more into detail with a longer demo and less talking on his website. this thing looks like it's be so much fun to use. (youtube demo reel link if you don't have quicktime.) apple and jazzmutant are working on similar things as well; this seems like the coolest, though.