bbPress 2.1 do have a “Group Forums” feature, where you can create a forums that’s specific to that groups that will show up in the bbPress list but not the Group Forums list that comes with BuddyPress . But keep it mind that it’s still under development.
Actually, the Group Forums comes with BuddyPress is also using the bbpress, just with some differences.
Thanks a lot sniperkitten. The futures from bbPress 2+ are exactly what I need, not the futures from the bbPress that comes with Buddypress. But there wouldn’t come a possibility that the group forums of Buddypress are compatible with bbPress 2+?