[laksjd]

That's a great concept: The fact that a list of {name, email, mobilephone number} allows you to effectively re-create your own network wherever you want is pretty cool.

I read the open/closed in the article as less about that and more about the fact that e.g. I can't push a twitter post to Facebook without Facebook specifically putting that function into Facebook. I also can't combine the comment streams from Twitter and Facebook. That's the kind of openness that I thought the article was referencing.