Make a true 3D window out of every screen with a WiiMote
Holy Crap. If you thought that your flat screen TV is just flat and that to get into the 3rd dimension you need a new screen that is about 10 years off this video will prove you wrong.
Made with the unbelievable useful WiiMote and the sensor bar or sensor bar "like" safety goggle which have their white "headlight" LEDs replaced by Infrared ones you can make a headtracker. Then you can make your normal screen look like its an actual 3d window by analysis the motion of the head and translate it to you "virtual camera".
How much its only perception that makes you "think" 3d is demonstrated enormously well. Besides using it for games I SO WANT THIS to work in Maya. Moving around an object or getting a closer view by moving your head has to be the second coolest interface since äh - since - multitouch of course ;)