i've been watching this one...in terms of feature requests, i'd be interested in
1. making it a friend request, not automatic add to friends list, although this is not a huge deal.
2. resolution of issues with email validation, as my forum requires it and turning it off would be a dealbreaker for me.
3. some instructions on at least a manual query that could be run to add the friend request for existing site members.
i do think this is a very cool idea, and think we could have some fun with it on my forum, as i had a few ideas for how i might use it. i also think it would be a nice way to get the members more involved in the new social networking features.
regardless, thank you for your work.