Well, this is pretty impressive. This Lego Mindstorms robot, powered by a Motorola Droid, is able to solve a Rubik's Cube from start to finish in a mere 25 seconds. It was built by chip manufacturer ARM to show off just how speedy their chips, like the one powering that Droid, are.
And to think all I ever made with Legos were space bases. I really didn't get the most out of my toys as a kid.