Using infrared (IR) light pens and the Wii Remote, it is possible to create very low-cost multi-point interactive whiteboards and multi-point tablet displays. Johnny Chung Lee, Carnegie Mellon University. The software can be downloaded at http://johnnylee.net
![Low-Cost Multi-touch Whiteboard using the Wiimote](https://cdn-ak-scissors.b.st-hatena.com/image/square/5394925597ac2e828f7ccc5070e160543211edec/height=288;version=1;width=512/https%3A%2F%2Fi.ytimg.com%2Fvi%2F5s5EvhHy7eQ%2Fhqdefault.jpg)