Re: WP and BBpress in 2 separate dbs?
I don’t know. I doubt it, because bbdb (the object used to do any database stuff) is hardcoded all over the place and you need a new bbdb object for every database you connect to, as far as I’m aware. So integration – which consists of sharing the users and usermeta table I think – would be impossible, unless you changed all references to the user tables to use your second bbdb object.
Why do you want to?