I think the main difference is that there would be a "behind the scenes" component that would allow profiles on different sites to exchange information in a secure way, while supporting different levels of privacy, etc.
I think a home page will play a part by integrating into the service. Instead of having a Facebook home page, you might go to any of a number of sites that would provide an aggregated view into your portion of the social fabric. Instead of looking at peoples profile pages, you would go to their profile page on a blog or anywhere else. This, too, would integrate into the underlying service.
I think a home page will play a part by integrating into the service. Instead of having a Facebook home page, you might go to any of a number of sites that would provide an aggregated view into your portion of the social fabric. Instead of looking at peoples profile pages, you would go to their profile page on a blog or anywhere else. This, too, would integrate into the underlying service.
This is all supposition, of course...