Pretty awesome. One of the more interesting developments in robotics of late, for me, has been huge leaps in the ability to image robot swarms and then communicate with the swarm in order to get it to do something. The quad-copters juggling, and now very small robots driving around inside an eye.

It suggests that a future treatment for cancers might be to "drive" a robot to a tumor cell where the end of the robot has a resonant cavity and them beam the patient with the required frequency radio signal which blows up the cell that the robot has inserted its resonant cavity into. I can't imagine yet how you could do that at the same time as imaging the cancer cells but clearly there are interesting opportunities here.