Microsoft endorses Open Document standard it condemns

"Why would you do such a thing, Microsoft? What's the reasoning behind this? Oh – I think I've heard of this before! What is it called boys and girls? EEE I think I've seen – Embrace, Extend, Extinguish. Embrace the open standard (OpenDocument, etc) Extend it (MS Office 2003/Office 12 XML-based specs?) and Extinguish the use of the standard. Office is the primarily used flavour of XML-based documents."