As is widely predicted there are already many people already knocking Windows 7 and they haven't even tried it and probably never will, but will continue to knock it. Remember the 'Anti Vista Brigade' now there is a new club called the 'Anti 7 Brigade' LUg.
If M/S came to everybody's home, gave them a new computer, all the software they wanted, and charged them zilch, people would still complain about the color of the case. It is the way of the world.