Johnny Lee's inventions with potential in Education

Here are three youTube videos which I believe have great potential when used creatively in education/training settings:

Low-Cost Multi-touch Whiteboard using the Wiimote


Haptic Pen


Automatic Projector Calibration with Embedded Light Sensors
Note how he use a model car as the protected surface for visualization [at 3:30]

Heat 1 of Men 100m freestyle in 2000 Sydney Olympics

The comments were a bit cruel. However, it was a true spirit of sportmanship.