The session is about SharePoint Custom Authentication and we really enjoyed playing with a CardSpace based authentication solution. It tooks a little bit more than half a day to make it working, but the result is really brilliant!
We defined a Publishing Portal with anonymous access and Forms Based Authentication, able to map an InfoCard to the FBA idenditity managed by the configured Membership Provider. Many thanks to Dominick Baier for his great CardSpace Control for ASP.NET that we referenced from our code, in order to make simpler the implementation of this solution.
Here are some screenshoots:
And a brief video of the result: