Microsoft starting to play nice?

Microsoft finally decided to add support to ODF natively, due in an Office SP early next year, not only that, but also allows users to choose ODF as their default format for saving office files. This I didn't see coming, nor Microsoft recent decision to help develop the next version of the ODF standard. Are we seeing a change in heart? A more open and inter-operable Microsoft that embraces standards but doesn't extinguish them? I sure hope so.