Bluetooth helps Facebook friends. Facebook have combined with Bluetooth technology to create a tool, Cityware, which looks for other Bluetooth Ids relating to other people using Facebook. The idea being to find people who are in your locale, and potential new friends.
Super solution for Rubik's cube. Number crunching Rubik's cube solutions, along with some smart thinking, proves that a cube can be returned to its original state in no more than 26 moves.