There is some 'appling & oranging' going on, I think more useful would be to categorize the various groups & initiatives. Here is my stab at a taxonomy:
OpenID, SAML, WS-*, ID-WSF, ID-FF, Shibboleth, YADIS, XRI/XDI, OAuth, XACML
Spec Definition Bodies
OASIS, OpenID community, Liberty Alliance, IETF, W3C, ID Commons, ITU, Internet 2, Google groups
Bandit, Higgins, OpenLiberty, OpenID for PHP, OpenSAML, ZXID, SimpleSAMLphp
Concordia, Cardspace & OpenID 'partnership'
Catalyst, RSA, DIDW, IOS
User-centric, VRM, enterprise, mobile
With this we can write sentences like
[Specification], defined by the [Spec definition Body] has been optimized to support [Use Case] identity. Work is underway to create software libraries at [Open Source Software]. There will be an interop demonstration of [Specification] and [Specification] working together, as profiled at [Metasystem initiative] at [Conference/Meeting]. Meanwhile, bickering continues on the [Discussion Group].
Maybe we could even standardize the above boiler plate to ensure consistency of PR?