Harness the power of the technology that drives the iPhone's multitouch display as well as Microsoft's uber-expensive Surface table for a few hundred bucks and some elbow grease. Using a projector, a modified webcam and what amounts to a homemade acrylic whiteboard along with some community-made software, you can reenact the iPhone commercial at home. Hit the jump for a sweet action vid and instructional link.
Looks like a great way to improve your tech knowledge and get geeky for a purpose. If nothing else your giant swiveling board/webcam combo will make a great conversation starter at your next shindig. [Interactive Multitouch Display]