Re: Login using Facebook Connect
That’s how the plugins operate. WP user is created when logged in w/Facebook, so when used with an integrated bbPress, the cookie would carry over, and the user should too.
Integrating Facebook Connect w/ bbPress or WordPress, IMO, is incredibly more significant than OpenID ever was. Most of my users had no idea what it was when we used it for logins, didn’t think the redirect was safe, and thought it was way more work than needed, but when we put Facebook Connect up, registrations and comments went up. It’s easier to tell someone that they can login using something they use frequently as opposed to explaining how/what OpenID is. Facebook seems more usable.