Update : It does look like there are a few small kinks to work out. In the discussion it is showing peoples login ID’s instead of their name which makes it difficult to see who is posting in the discussions.
Also the communities seem to be lacking a ‘Join’ feature however people who have not joined the community can edit the communities settings, kind of like as if they were manager.
I’m sure that these are just slight configuration settings that will get corrected soon.
Update : Looks like the names issue in the discussion forums has been corrected.