Diaspora should have a similar model. You can use a hosted node, or one your ISP provides you when you sign up, just like they provide you with an email address.
We don't, but we should, eventually. What you describe is only the first step. The ideal world clearly lies in easy, ubiquitous self hosting.
Diaspora should have a similar model. You can use a hosted node, or one your ISP provides you when you sign up, just like they provide you with an email address.