I don't think Sony's ever been dumb... They don't do things in their own proprietary way becuase the're stupid but because it gives 'em more money on the bottom line. And most of all they have a horrible business ethics in the way they have been making and forcing proprietary standards.
Nice example is PSP where you have to buy your movies over again due to licensing and technical limitations, even if you have the movie from beforehand and even if it's technically no problem to get it to the PSP, it's just been blocked.... (Hope I'm right on this?)
Sony is big enough to do these things....
I don't think Sony will have any intentions on making or adhering to open standards here, they don't think like this.
Which is why I do have a "personal Sony Boycot"