Our chatroom is currently called Robotics. It's not really necessary, but it's be quite nice to have a more fun name. For example, Programmers has "The Whiteboard", Chemistry has "The Periodic Table", SU has "Root Access", and so on.
As a slightly left field suggestion, and in deference to (one of) the fathers of fictional robotics - not to mention the creator of the Three Laws of Robotics:
(Ignore this sentence, it's just to fill up my 30 character minimum)