Glad you liked it. I'm not sure if I'll have time to implement it myself (I'm an academic.. more time for writing than hacking :-)) but I've worked on a very related project called SocialKeys: http://www.iab.org/wp-content/IAB-uploads/2011/03/arvind_nar...

It's been on hiatus for a while.. maybe this would be a good time to restart it.