Re: Forum, not bbpress
bbPress is turning into a WP plugin sometime in the future, probably using the custom post types feature in WP 3.0.
There is some merit in bbPress within BP. It just needs a little love.
Didn’t know this was an idea thread. I don’t think this is going to change any time soon.
You could try Simple:Press or one of the other WP forum plugins out there.
Scott Kingsley Clark has a port of bbPress working on his WP Pods CMS framework, which could be a good future alternative: