[mortenjorck]

That's a great idea, but the Facebook app will always be the weak point, because everything you share (to specific users) through it will still be open for Facebook to use however it sees fit.

Ultimately, I'd say this is the problem of social flatland: http://interuserface.net/2010/02/buzz-facebook-and-social-fl...

Disclaimer: That's my blog.

[harshpotatoes]

I like the non-flat approach to social networking. Most of my facebook friends are there because we went to high school together. It would be nice to be able to group them apart from my 10 or so current friends, so I could not snub my acquaintances but keep in touch with those who sould be kept in touch with.