The OASIS OpenDocument Format has been submitted to the International Organization for Standardization/International Electrotechnical Commission's Joint Technical Committee as a standard for XML office documents.
http://lists.oasis-open.org/archives/members/200509/msg00016.html
http://www.oasis-open.org/committees/tc_home.php?wg_abbrev=office
More reporting:
http://www.computerworld.com/softwaretopics/software/story/0,10801,105314,00.html
http://news.zdnet.com/2100-3513_22-5892649.html
