I didn't see a "maps" camp though. There is a camp near center camp where people register their camp and you can get a general idea where camps are. I think it's called "Media Mecca" or something similar. Not sure if that's what you're talking about.
I might recommend joining the maps_forum mailing list and posting there to find out if they're planning anything this year... should be interesting, if they are!
Last year they had a very big presence and wrote about it before. But I don't see anything on their site about this year. Nor do I know how to get on their list.