SourceID has released WS-Federation proof of concept code:

The ASP.NET-based WS-Federation Proof-of-Concept code is the basis for this demonstration, and is focused on providing a framework for exploration and meeting the interoperability event requirements, not on being deployable for general use. This code is not part of SourceID.Java or SourceID.NET (the primary projects at SourceID.org), although concepts and code from this release may be used in future SourceID releases.

From SourceID | SAML, Liberty Alliance, WS-Federation | Federated Identity Management
Referenced Wed Jun 09 2004 19:14:54 GMT-0600