Directory Programming .NET

Is it possible to create web services that can utilize the SAML tokens that ADFS issues? 

For instance, the user connects to an ASP.Net claims aware application.  In turn, that application needs to request some resources on behalf of the user (for instance, SharePoint web services or some custom web services).

Is this possible today or will new technology like geneva provide this type of capability?

Thanks!

Yes, but not really with ADFS.  You need the WS-Fed active profile for this which means Geneva Server.  The support for this on the web services side is done with the WCF federation profile support.

Geneva also supports the delegation scenario you mention with the "ActAs" feature.

So, start looking at Geneva.  :) The beta is open.  It does everything ADFS does and a whole lot more.

Million dollar question:

What's the release schedule for Geneva?  I thought I heard people say 2009, but I couldn't find anything on the MS website regarding this.

It is not publicly announced yet and there is no official (or unofficial word).  Rumor suggests that it will be this year and will NOT be part of the Win7 release (now official for October) but will be released out of band "not too long" after that. :)

Beta 2 just came out a few weeks ago.  It is pretty good for me so far but we haven't gotten really deep in it yet.