I've written a short analysis on Microsoft's new "Zermatt" framework that can went up on our website yesterday. For those who have missed the announcement, Zermatt is a new developer framework from Microsoft that makes it easy for developers to work with claims, and is also a foundation for building secure token services (STS). In the analysis, I also included some of my thoughts on the "claims-based model" in general, and specifically about the lack of an authorisation model. I think this is perhaps the largest gap currently for applications using WS-Trust, WS-Federation and the claims-based model, exacerbated by the fact that Microsoft currently provides no vision how this will be eventually be addressed.