Build Your Own (Very Cheap) Multi-Touch Interactive Whiteboard

It has been two years since Johnny Lee posted the hack for creating an interactive white board with a Wii controller and a cheap infrared pen. His Youtube TED Talk demonstration has been watched over a million times. The cost of Wii controllers has gone down and with over 75,000,000 Wii systems there are bound to be a few extra controllers sitting unused.

And still I have not built my Johnny Chung Lee ~$50 whiteboard. What am I waiting for? What are you?

TED Talk

Build one...or (for the cost of a traditional SMART or Promethean Board) build 50 of them!