I recently gave a presentation at the Bennett Adelson .NET SIG in Cleveland. We covered the basics of Windows Authorization Manager, what's new, and walked through a non-trivial demo that showed a variety of ways to use the technology.
Slides and demo code are available on the Past Events page of the Bennett Adelson web site. It's the AzMan presentation from Nov 10, 2009.
I'd love to hear any feedback about your experiences with AzMan. Feel free to contact me if you have any trouble with the demos.