It already puts the link to the team on the post to facebook in my BOINC milestones app (if you are a member of a team that is) - happens for everyone though the link back is dependent on having a correct url on the projects team settings but that's usually correct.

Always a good way to advertise your team

I've actually had 6 people mail me via the app to say they have joined BOINC directly because they saw a post from my app on one of their friends walls

Bok