GKPlayer, Game Center, Avatars

Does Game Center offer any support for player avatars, e.g in a multiplayer game?

If not, presumably an app will have to retrieve an ava开发者_运维知识库tar from the local device?

I know this is an old question. But just for new folks who stumble onto it: Check out the GKPlayer class reference, specifically the loadPhotoForSize:withCompletionHandler: method.