Steve Ballmer is either:
1) Trying to appear more "open" (what with all the lawsuits in Europe & the oh-so-enthusiastic reception of OOXML), so they can have more influence in the real standards body.
2) Simply trying that old trick (to pretend suck up to developers) & then turn around & do something else.
Eitherway, its a PR stunt because it's hard to believe Microsoft wants to change its definition of "industry standards" from "something we came up with" to---wait for it---"industry standards".
Unless I'm missing something