It always comes down to $$$.
What's going to happen when Longhorn comes out and
WinFS, I wouldn't be surprised if it's not able to be read by any other OS but a version of Windows. And then to write to it, you'll HAVE TO HAVE Windows XP or later.
I can't believe, all this fuss just so GZ3 can look at pr0n on either Windows or Linux . . .