> ... integrated as an overlay with any other social network. I think that the killer idea here is the "natural" social network. Email, IM, etc., are all used

> ... integrated as an overlay with any other social network. I think that the killer idea here is the "natural" social network. Email, IM, etc., are all used to communicate already. Adding analytics on top of that is genius, and really cool. The search is meh (see OSX's Spotlight), but the stats are sweet.