OpenSocial disenchants

I am not really a keen user of socaial networking sites, but I believe that they intrinsically carry a lot of potential to alter/compliment most business models on the web.Like I mentioned in an earlier post, the biggest challenge right now is that social graphs are locked inside sites that own them and thus expanding/harnessing them across these various sites is not a possibility.
I was actually hoping OpenSocial to solve this problem but was disappointed to find out that it is nothing more than a means for developers to build apps which are cross-portable on various social networking sites.
So I guess we are still a long way from USN (Unified social network) or to and fro data pollination on the social graphs.

Social graph and beyond

Taking the previous thread forward, presuming we can solve the unique yet common identity problem, how can I use and benefit from my social graph apart from just staying in touch with people and sharing community/work specific knowledge/information.
I reckonOpen Social a project undertaken by Google that involves building "a set of common APIs for building social applications across the web", could be the next big thing.Though the description does not reveal much except that it would enable social networking sites to allow influx and outgo of user and graph centric data.This move makes the possibility of a USN (unified social network) if i may call it,coming into existence look real.Moreover, since data flows two ways on graphs, this could mean that one could relate any piece of data/information on the web to one's social graph.Six degrees !