The table "knows" where the viewer is and his orientation at all times, so it can present a true 3D view to the viewer. That is, as the viewer walks around the table, moves in and around looking at the object, the screen presents him with a true 3D (not just stereoscopic) view of the object from that position. Watch the overhead views and see how the displayed image changes depending on where the viewing glasses are.
still have to wear glasses sigh. hate wearing those things; always makes the experience seem overly limited. be so glad when they find a way to get rid of 'em.
but enough whining...
it's another step in the right direction. tabletop display is something i've been waiting for a few years now... hopefully sometime this decade it happens.
There's a video somewhere of a 3D TV that doesn't use any glasses, it had 3d "pixels" that work from any viewing angle. Of course what they're not saying is that this works is because the 3D models you have are already designed. For 3D video you'd need cameras that see all possible viewing angles.