An interesting project going on at the LIACC artificial intelligence lab and INESC Porto in Portugal is connecting the open-source Marsyas music analysis engine with a LEGO NXT-based robotic platform. The result is a mobile robot that attempts to dance to the musical beat and patterns - complete with spinning skirt. While the system is certainly inspired by human dancing, it's obvious that the robot's 360-degree arm, head and torso joints are going to add a new dimension to the craft that will take their biological predecessors a while to match. Check out the video.