You've probably already heard about the event wherein Justin Bieber was enlisted to introduce TOSY's new mRobo at CES, but you may not have learned much about the device itself or the company that makes it. mRobo is a combination music player and dancing robot. It can store 2 gigabytes worth of music in its own memory, or stream it via bluetooth, or simply listen. In any case, when there's music playing, it sprouts a head, arms, and legs and begins to dance in time to the beat. The price is set at $199, and you won't be able to get one until later this year.