BuddyPress.org

@dennish – you do realize WPMU is now merged with single WP?

And I’d like to counter that the dev (Donncha) was absent for up to a year. Many, many times development was delayed simply because of feedback from the userbase.

The latest WPMU version is 2.9.2 – which is absolutely current with the latest WP version. Why you were locked in to using 2.5 is beyond me.