I did a session at Tech Ed on CardSpace (formerly known as InfoCard) that illustrated several ways to integrate CardSpace into your applications. For example you can:

1. Use CardSpace to pass claims to a web application using the <object> tag or XHTML (IE 7).
2. Use CardSpace to pass claims to a WCF web service using wsHttpBinding/IssuedToken credentials, or wsFederationHttpBinding and specifying a list of claims.
3. Use CardSpace to pass claims to a WCF security token service (STS or token issuer) that in turn validates those claims and issues a token for the target WCF service. This involves specifying an alternate token issuer, and implies that that token issuer might trust the CardSpace claims to issue a proper SAML token for the target service.

I have samples for all three, and the delay in posting (sorry) is related to writing up instructions to make sure you are successful...while I was out of town last week.

UPDATED: 06/28/06 to add federation sample

InfoCardBrowser.zip (18.27 KB)

InfoCardWSHttpBinding2.zip (1.98 MB)

MediaServicesFederation.zip (2.07 MB)

Oh, I should also mention that I had lots of help from several product team members to get these samples working on the latest build on short notice - both on the WCF and CardSpace teams...these guys really rock! And you might want to head to Martin Gudgin's blog for more Q&A on the STS he let me use for the federation sample!

Let me know if you have any questions after reading the readme files!