Given the trend...it looks like M$ has done a great job so far (in comparison to Vista)!
Popularity of MS products is inversely proportional to cuteness of the name.
I agree with almost all of the above posts. There really was no doubt that this would happen, people were reluctant to upgrade XP to Vista because XP was solid and Vista was pretty different. So its easy to ride that one out. 7 though, its out a few years later, and XP is getting really old now.
The only thing I really want to add is that Vista's install really isn't much different than 7, and it is MUCH easier than XP. So 7 isn't doing anything for the first time, a lot of these 'innovations' happened in Vista.
Maybe one of the most intelligent posts offered here on the news board!