Hitachi has developed a new display that is embedded in a table-top. The touch-sensitive unit can be drawn on and can even respond to gestures, so that drawing a circle around something, for instance, could trigger a zoom in on an image, or inscribing the sacred pentagram could automatically call your principal and tell him you're skipping Algebra. It's not an LCD, but instead an acrylic-topped piece with a projector underneath and an infrared system to recognize motion.
Hitachi plans to commercialize the tables next year, starting with the bargain basement price of $20k. Apparently they're working with Namco to develop some arcade games that utilize the technology as well. Multiplayer, touch-sensitive Ms. Pac-Man?