FUD Fighting: Microsoft pledges support for ISO-approved Open XML specification in products.
Chris Capossela has written an open letter (which seems to be an increasingly popular thing to do these days) that includes the following statement (my emphasis):-
As a result of global feedback and consideration, the Open XML standard under consideration by ISO/IEC has been significantly improved. Microsoft has been afforded a wonderful opportunity as a result of this process. We've listened to the global community and learned a lot, and we are committed to supporting the Open XML specification that is approved by ISO/IEC in our products.
I'm aware that some of Microsoft's competitors have expressed concern about whether Microsoft intended to do this, so I guess this will bring some reassurance.