XP for business/software industry fast application use with no unnecessary distraction like the fancy GUI and unfamiliar commands different from the one they use so far so that they no need to spend extra money to train people how to use vista.

For others especially younger generation home user, this is like "pimp" my desktop feature. As long as they have enough power to cater the new os, then it should be better than the xp.

But in my opinion, in the near future, people are going to start using vista or 7 more as the pc technology is getting better with the old one phasing out soon. Like the old times, no one is going to use a pentium 2, 64Mb ram and 10gig hdd anymore.