Vista will turn out halfway decent provided they have a way for the user to go around the so-called "Protection" crap that prevents most software from being installed on the computer.
You can't turn it off. It's not just a "feature", it's a business strategy.
But wait a few months and see what happens - hopefully SOMETHING will!
Why do we care, again? Just like IE, Vista's crap can never be completely removed, and that will never change because they don't want it to. Just don't use Vista.