Easy teamwork at your fingertips with high-tech table: This is cool as all get out. A horizontal, tabletop touch screen which knows which of multiple users is actually touching it.
Mitsubishi’s DiamondTouch displays a PC screen on a high-tech tabletop. People sitting around it use their fingers to create and manipulate projected virtual objects, with the system knowing whose fingers did what thanks to small currents of electricity that flow through the chairs.
Here’s the page on it at Mitsubishi’s site. There’s a movie.