Well, first, and least important is the appearance on Wikileaks of a document on the fast track process which seems to imply that the fast track approval of the Microsoft® OOXML document standard was improper.
Someone with more knowledge than me needs to check it out though, it’s only 2 pages.
Of more note, is that Microsoft® will natively support ODF in Office. The head of Griffin Brown, the organization nominally in charge of maintaining the ODF standard thinks that this will relegate OOXML to second place status, but I’m more inclined to believe that this is an attempt to “embrace and extend” (damage) ODF to the maximum degree possible.