This is SurfaceScape, a project aimed at taking Microsoft's "Surface" touch-screen table and bending it to the will of a bunch of tabletop gamers.
Watch the clip below. Especially the first couple of minutes, with the practical demonstrations. Then imagine playing a game of Warhammer 40K on it.
It's like the perfect blend of video games and tabletop gaming. The tactile feedback you get with actual miniatures mixed with the processing power and rendering capabilities of a computer.