JP Brown\’s Serious LEGO CubeSolver. A serious Lego construct that solves Rubik\’s cubes. Seriously. It\’s all the more impressive cause he also wrote color recognition software for the quickcam.

He also has a contruct that solves the Towers of Hanoi problem. And there\’s a lot more serious Lego inventions on the main page. Man, now I want to get a set of Mindstorms to play around with.