ISO NB's approved MS-OOXML not because it meets ISO Interoperability Requirements. It doesn't. OOXML doesn't even come close. They approved OOXML because it's the best deal they can get given the MSOffice predicament their governments are caught in.

Governments got the binary blueprints they have been insisting on, but didn't get the mapping of those binaries to OOXML.

Governemnts also took control of OOXML, with Patrick Durusau and the JTC-1 now in copmplete control of the specifications future. Sadly though, Durusau and company will not be able to make the interop changes they know are required by ISO and related World Trade Agreements. The OOXML charter prevents any changes that would degrade in any way compatibility with MSOffice! This charter lock was on full display in the Microsoft - Ecma response to Geneva BRM comment resolutions, with Microsoft refusing to address any comments that would alter compliance with MSOffice.

Durusau has always believed that a one to one mapping between OOXML and ODF is possible. Just prior to the Geneva BRM though, the EU DIN Workgroup released their preliminary report on harmonization, which they found to be a next to impossible task given the applicaiton specific nature of both ODF and OOXML.

The DIN Report no doubt left the mapping-harmonization crowd (lead by Durusau) with few choices other than to take control of OOXML and figure out the binary to OOXML mappings for themselves, wih the hope that somewhere down the road OpenOffice will provide OOXML documents. Meaning, governments are not looking at open standards for XML documents as much as they are looking to crack the economic hammer lock Microsoft has on the desktop.