I haven't read your whole thing yet, but have been thinking in broadly similar directions for a while. Have you read Tim O'Reilly's The State of the Internet Operating System? (and part 2)
One payoff graf re Wagn:
The breakthroughs that we need to look forward to may not come from explicitly social applications. In fact, I see "me too" social networking applications from those who have other sources of identity data as a sign that they don't really understand the platform opportunity. Building a social network to rival Facebook or Twitter is far less important to the future of the Internet platform than creating facilities that will allow third-party developers to leverage the social data that companies like Google, Microsoft, Yahoo!, AOL - and phone companies like ATT, Verizon and T-Mobile - have produced through years or even decades of managing user's social data for communications.
No doubt i will have more to say/edit as i work my way through your manifesto...
--John Abbe.....Thu Jul 15 19:38:08 -0700 2010