A new way to sketch

OK, I know that this is rather geeky, but I think this is quite cool. Here is a video of someone (who incidentally looks a little like an Open University lecturer, but he is from MIT, so I suppose that's why) demonstrating a new way of sketching. He draws on a whiteboard and hits a 'run' button and the drawing comes to life. It is only using some very basic concepts, but I would be interested to see this develop. Take a look - unleash the geek inside you !