A "Social Meta Network" Site

Data portability is a good thing, I guess, but it does not immediately solve my issue: I'm sick of entering and maintaining my personal data on about a dozen sites.

The solution: A site that reads my information from any one site (or from my openid) and maintains it on all the others. That way I would only need to maintain one profile, say the one on Linkedin, and the software would update all the others. Or, I could edit my profile on my meta site directly.

My meta site would also show me news and information about all the contacts I have across all social networks (a bit like spokeo.com), and it has to be able to understand that some people have multiple accounts (e.g. via a merge feature like the one in pidgin).

Wouldn't that be a pip?