Looks like I should put my projector and screen to use again (and not in the manner Chewy was using it in). Johnny Chung Lee, a fellow Carnegie Mellon student (Ph.D. Graduate Student Human-Computer Interaction Institute) presented some nifty Wiimote hacks during TED2008. Of note is the Low-Cost Multi-point Interactive Whiteboards which you can see being presented in the video above. Part of my affinity for the Whiteboard stems from my high school days when we had one to play around with in our Technology department. Of course I don't think it was any where as cheap as what Johnny is proposing.