Seems to me to be a dumb thing for any OS to say about any other OS. They are each good in different areas (perhaps Linux in a few more), but that's just me...
As to them not using Linux, I suspect that they have thorougly investigated Linux. I mean, look at CMD next to *nix shells--complete ripoff. Microsoft isn't stupid, just stubborn. Hopefully Vista will be as good as they're bragging.
