As you may have seen in my last post, ISO had yet to release a public statement confirming that Open XML had indeed been approved as an ISO/IEC standard.

Here's the beef straight from ISO's website today.

... and a choice quote (emphasis is mine).

ISO/IEC DIS 29500, Information technology – Office Open XML file formats, has received the necessary number of votes for approval as an ISO/IEC International Standard.

Approval required at least 2/3 (i.e. 66.66 %) of the votes cast by national bodies participating in the joint technical committee ISO/IEC JTC 1, Information technology, to be positive; and no more than 1/4 (i.e. 25 %) of the total number of ISO/IEC national body votes cast to be negative. These criteria have now been met with 75 % of the JTC 1 participating member votes cast positive and 14 % of the total of national member body votes cast negative.