Hi there,
I'm Pat, living just outside Edinburgh, Scotland.
I caught Johnny's vid on YouTube for the head tracking setup and thought it was a brilliant bit of lateral thinking.
Downloaded the app and got it working with a couple of remotes (Apple TV & an iPod Dock) but I reckon I'd better buy the safety glasses and LED's since you look silly moving your head with a couple of remotes held to your temples

I mentioned the whiteboard project to a friend at work who immediately wanted to build it for a local cash-strapped school.