Aquapod Robot - Ambhibious Tumbling Robot By University of Minnesota

Aquapod is created by the University of Minnesota's Center for Distributed Robotics. It uses two carbon fiber arms connected to servo motors that can rotate continuously to, as the researchers put it, "induce a tumble." The reason that it's called Aquapod, incidentally, is that it's also waterproof, with the ability to control its buoyancy, floating or sinking or even just chilling out somewhere in the water column.

This enables it to operate quite happily on land as well as in water, where it can sink itself to the bottom of lakes and streams and tumble along the bottom.
[video=youtube;GaAHO9TFlVQ]https://www.youtube.com/watch?feature=player_embedded&v=GaAHO9TFlVQ#at=53[/video]
What's your take on this robot?