What are the names of the Portal 2 co-op robots?
They have official names now: Atlas, The stout blue one, and P-Body, the slim yellow one.
References:
- http://www.wired.com/video/portal-2-atlas-and-pbody-prepare-for-testing/713558795001
- http://www.examiner.com/pc-game-in-national/portal-2-video-shows-atlas-and-p-body
The informal nicknames around the blogosphere right now is Red and Blue. Here is a link showing the red/blue names in action