Update: We're hearing you guys loud and clear in comments. We'll admit, we hate senseless Microsoft / Vista bashing just as much as the next guy, and that's not what this is about. The problem here is Microsoft basically filmed itself an infomercial (or "pulled a Pizza Hut," as pointed out in comments) and is passing it off as some interesting experiment into FUD. If these users had been sent home for a week or so with a Vista machine -- or better yet, a copy of Vista to install themselves -- that'd be a whole different story, but they weren't. There was no scientific method in play, no control experiment, nothing. They were shown a 10 minute demo. That's it.
Read - The "Mojave Experiment"
Read - Windows Vista Team Blog