I saw this very interesting robot today. Not only can it crawl, shimmy, roll, and walk, but it does so by combining a small group of autonomous, modular, self-reconfiguring bots that operate together as a unit. Very cool!
Transformers, indeed. Have I mentioned that I want a set of Lego Mindstorms NXT for my birthday? I would love to mess around with ruby-nxt or the Microsoft Robotics Studio.