Interested in the 'identity problem'?  Sometimes these quiet, little betas should really get more attention.  If nothing else, you can learn about the three styles of handling claims-based identity - active, passive or 'passive-aggressive'.  Ah, Vittorio, keep sketching, one day we'll catch up to you.

Check it out.

Vibro.NET : Announcing the Beta release of “Zermatt” Developer Identity Framework