Status / progress of OpenID profiling of XRD?

I had an action item from the Kantara ULX WG to ask about the situation with
OpenID use of XRD, meaning is this proceeding someplace, waiting on
finalization, being ignored....?

The ULX group is trying to boil out a list of requirements for information
about a relying party that need to be expressed to make client-side identity
technology work well.

XRD is obviously a likely candidate for expressing some of that, but I
wanted to make sure there wasn't a disconnect between any ideas on that and
how OpenID might make use of XRD. Infocard is still pushing along an OBJECT
tag strategy that I'm not very fond of, and SAML has metadata already, so
the onus to come up with something isn't as high.

-- Scott