Sure, you can make a multi-touch table out of just about anything these days, but it still always pretty impressive when a project comes together as nicely as this so-called Struktable multi-touch surface built by the folks at Struk Design Studio. Like some other rigs, this one relies on the FTIR (or frustrated total internal reflection) effect, which makes use of some infrared LEDs placed around the edge of the display, and a mirror and a short-throw projector to actually display the image on the surface.