I’m not sure why there is the constant it’s already a standard, so “let’s make it official” party line for OOXML.
In fact currently there are more ODF documents than OOXML.
The current discussion is about what is coming next and not about what we have at the moment. Certainly older Microsoft formats are pretty much a mob enforced standard, but were does that get us? A future likelihood of a community generating the situation where we are forced to buy Office 2007 just so we can send OOXML documents for a government tender, business contracts, legal letters, etc, etc, etc. Badly directed standards have a way of doing this.
Why should a new standard justify a commercial status-quo or monopoly?
I think it is also disingenuous to claim there is a business cost in failing to standardise OOXML. If a worldwide ISO standard existed (oh right it does) then Microsoft like everyone else has the choice to implement a migration path. If this standard was built into Office Now+1, then the business cost of OOXML and ODF would be the same.
After all we are not talking about the past, but looking to the future.