Xerox PARC Working On Modular Robots

An reader writes "I was watching Discovery Channel Canada last night, and they had a story about modular robotics that is being researched at Xerox PARC. Rather than build a single, large robot, project leader Mark Yim is working on small, autonomous bots that can work together to achieve a desired goal. When many of this bots are linked together, they call the result a polybot. "