We are happy to announce the thinktecture Security Token Service (STS) Starter Kit. It shows how to build a basic yet powerful STS based on Geneva Framework (Beta 2) which integrates with all the nice and powerful ASP.NET-isms like membership, roles and profiles.
The heart of the STS is configured with a simple web.config entry like this:
<starterSTS siteName="thinktecture Security Token Service Starter Sample"
Read Dominick's blog post for more details and please make sure to watch the Setup & Overview screencast.
Any feedback is highly appreciated!