In his Dec 6 blog entry
reports how Microsoft first promised through many spokespeople that stewardship of OOXML would be handed over to ISO, but "Ecma's "Proposal for a Joint Maintenance Plan" [pdf] outlines quite a different vision for how OOXML will be maintained. A summary of the proposed terms:
* OOXML remains under Ecma (Microsoft) control under Ecma IPR policy.
* Ecma TC45 will accept a liaison from JTC1/SC34 who can participate on maintenance activities and only maintenance activities.
There are discussions at Groklaw http://www.groklaw.net/article.php?story=20071206131310362 and Slashdot http://slashdot.org/article.pl?sid=07/12/06/2129203 on this news.