DRM also prevents you from making a copy of a CD/DVD, unless the publisher has allowed it. That's right. Buy a legitimate CD/DVD and there will be a good chance Vista will not allow you to make a copy.
Or how about how bloated the OS is? People are going to be shocked when they are forced to install 4GB of RAM in order to play a game. The same game which would run fine under XP with 1GB of RAM.
MS has moved the date around, but they are trying to get it out the door in the first quarter of 2007. I hope they do not make it.