Rubik's Cube was invented in 1974 by the Hungarian professor of architecture and sculptor Ernő Rubik. Since then, everyone tried to solve this game as fast as possible. The human record was set at the Melbourne Winter Open 2011 by Feliks Zemdegs.
But wait... We have a new contender!
This ARM Powered robot was created by Mike Dobson and David Gilday. As you can see, the mechanics are constructed from LEGO part. The device's "brain" is a collaboration between MINDSTORMS NXT and Samsung Galaxy S2 running a special Android application.
The solution is determined using the phone's camera, enhanced two-phase algorithm implemented in the Android app, Bluetooth communication between the phone and the LEGO Bricks.
read more about Rubik's Cube on Wikipedia