A-ha! Now I see where we diverge
I, presumably like most people, am used to using only my computers, so I set them up and use them how I want. Designing a computer so the IT admins are most comfortable using everyone's, vs the average user being most comfortable using their own, is not going to result in a positive impression from the masses.
I can see the appeal to that if your normal setup is 2 or more screens. I think I'd still rather have something simple and more notification like than live tiles taking up the whole screen, though. If I really wanted to read headlines, I'd pull up my RSS reader. If I don't want to read them, why are they taking up such a huge chunk of screen? I like mah desktop images, dammit!I have oddly not yet run 8 on a desktop, but I wonder if Metro on one screen and desktop on the other might not be a good environment.