http://www.engadget.com/2010/01/26/hexagonal-interactive-oled-gaming-tiles-likely-to-cost-a-bundle/
Heck, even with the example they give with a projector, that's still pretty cool.
Interesting
That's pretty cool, still in it's infancy but I can see this taking off in a few years.
It combines the physicality of the tiles with the "good graphics" from a computer, very clever.