While it COULD have been a great step forward, it was only a little jump. The most irriating thing is that you have to spend tons of time customizing your ribbon because out of the box it just isn't usable.

Plus, other than the ribbon, Office2k7 offers nothing over Office2k3.

The interface in Vista is a step back, not slick...
http://computerworld.com/action/article.do?command=viewArticleBasic&taxonomyName=windows&articleId=9011819&taxonomyId=125

The biggest problem is that Vista is bloated and a serious resource hog. Across the board apps and games run SLOWER in Vista than in XP.

Sure, the DirectX10 argument will come up, but honestly, we won't know until we see it...