22 megapixel display wall
This is pretty cool. Basically these guys took a bunch of projectors to create a huge display wall, a bunch of cameras to detect hand positions (for 'multitouch') and a bunch of computers to do graphics crunching. they then use the setup to demonstrate navigating a 13 gigapixel image of some city in Norway.
http://www.youtube.com/watch?gl=GB&hl=e ... r_embeddedTotally minority report. The snapping the fingers thing is gimmicky, but the rest is pretty cool.