Allowing Vista to play Bluray makes MS a major proponent of DRM? Then so are Google(Widevine acquisition), Mozilla(DRM in HTML5) and Apple. If you're referring to the FUD against Vista DRM, it was debunked long ago. I guess you missed it(read all three parts).

http://www.zdnet.com/blog/bott/everything-youve-read-about-v...

Also, perhaps you believe more FUD against Windows 7's perceived DRM, but it was also debunked.

http://arstechnica.com/information-technology/2009/02/oh-the... Perhaps you need to read from more varied news sources than just Slashdot, Groklaw and Boycott Novell/Techrights.

And what have you got to say about Palladium implementation by Apple?