Car/Vista comparison
Yes MS is a business, but the rate of change in OS's is so fast it doesn't give anyone a chance to get used to the change. Everyone is using an XP with XP apps and then POOF MS makes an OS that is unfriendly to XP apps! Yes, it's up to the software companies to make OS friendly apps, but MS has a role to play there too. Funny how Windows 7 has an XP option!
As for cars and vista, changing the shape or colour of a car doesn't make it go slower or make it harder to steer or start. That's were MS makes it hard on the user. Imagine if EVERYTIME you turned your key to start your car, the car asked you if you're SURE you want to do that? And then made you reach over and push a couple of buttons too.
Or had 9 different ways to shut off the car?