Having two identities for yourself is an example of a lack of integrity.
Every application will be designed from the ground up to use real identity and friends.
The web is at a really important turning point right now. Up until recently, the default on the web has been that most things aren’t social and most things don’t use your real identity. We’re building toward a web where the default is social.
If you're always under the pressure of real identity, I think that is somewhat of a burden.