Marshall, Larry, and I recently received feedback from Ned Freed, the IETF area director tagged with doing the initial review of our XML guidelines draft. I've updated the document to incorporate Ned's comments and others received for -05. With Ned's comments addressed, an IETF last call should happen soon. The updated document can be found here:
http://www.imc.org/ietf-xml-use/index.html
I've also sent the text version of the document to the I-D administrator. It may be a day or so before the formal announcement is released.
-Scott-