Paul Trevithick
just announced that Higgins will start developing a SAML 2.0 compliant card selector, that will - in addition to Windows CardSpace compatible i-cards - support SAML 2.0 compatible "s-cards"
[1]. This will be quite interesting to follow, in particular if Higgins really supports the SAML 2.0 protocol (not only the token format). In that case it would really step up to be part of the identity meta system (actually: the
Aleph 0 Identity System 
).
PS: Welcome in the blogosphere, Paul!
tag: saml, identity, higgins, liberty
[1] Paul Madsen made some interesting remarks about that name...