What can I say? How have microsoft got the nerve to release a worse version of XP and call it better?
Other issues that spring to mind:
1) despite it's massive bloated size it still can't protect itself from viruses, so the first thing you are advised to do is buy additional anti-virus software. Couldn't they have built virus protection in?
2) They have changed some of the standard parts of the windows inetrface so that they neither look the same, work the same, or have been given different names. (for example, the old 'Add/Remove Programmes' has been renamed and tucked away somewhere else - why?) Some of the explorer windows are different and more limited.
3) Vista has some minor improvements (when it breaks it fixes itself, but think about it, is that really an improvement?) but basically it was just a big money grabbing exercise. Why else would they release it when Windows 7 was already well in the pipeline?
4) Slow, unless you buy a very powerful (expensive) computer. Is that progress?!