If my parents had given me a cool name like Johnny Lee, I likely would have invented such marvelous contraptions as well.
Johnny Chung Lee - Projects - Wii
Many educators have already adapted Lee's interactive whiteboard. You yourself can have a $5000 teaching and engagement tool allowing you to demonstrate, present, and who knows what else for the grand total of $50 + tax (the cost of a Wiimote and a light pen). It's the ultimate bait and switch tool -- the audience (great especially for kids) think they're going to play Wii, when in actuality it's your presentation they're sitting through. Muahaha! If you have used this, please let me know what you used it for. Here's a demo.