BuddyPress.org

For me, FB Connect is MUCH, MUCH more attractive than OpenID. My target audience is the general public, not Linux evangelists. Most of my target audience uses Facebook, but has no idea what OpenID is. A Facebook button on my site is of much more commercial value then OpenID (whether I like it that way or not). Small social networks are often competing with Facebook, and people are a lot more likely to join my sites if my sites integrate smoothly with FB.

Just my .08 worth. Please consider FB Connect.

Mark