Have you upgraded from XP yet?
Windows 7 turns a year old this month, and 12 months after a successful launch, nearly everyone agrees that it is a huge improvement over Vista. However, despite this, the majority of Windows users are still running XP and have yet to upgrade to Windows 7.
Conceivably Tech reports that, though the number of Windows users still running XP is falling, it's falling at a very slow rate. Data released by Net Applications shows that Windows XP accounted for 76 percent of all Windows users when Windows 7 launched and this figure has fallen just 10 points (to 66 percent) in the last year. Though Windows 7's market share is strong and continues to grow, Net Applications data puts XP's overall September share in the OS market at 60.03 percent, down just 0.86 percent from the month before.
Conceivably Tech's Wolfgang Gruener predicts that considering XP's overall OS market share is dropping at a rate of less than one percentage point per month, it could take over a year for the nearly 10-year-old Windows XP share to drop to 50 percent of the overall market share. The data comes as we approach a particularly significant milestone for Windows XP. Microsoft's deadline for manufacturers shipping machines with Windows XP is October 22.
Source: Conceivably Tech

if you're good with computers and planning on buying 7 wait until service pack 1 is out, maybe even service pack 2. too many headaches with vista/7 to not want to go postal at microsoft corp every single day. wait for the hardware you need to be designed for windows 7 first and not backward compatiable with vista/xp as you'll pull your hair out.
Windows 7, though most of the time can be configured not to, does more for you... I am personally quite capable of doing it myself.
At least Windows 7 does a few things better than Windows 2000, although certainly not everything. Windows XP is just a bloated, slow, annoying (does anyone with an IQ over 80 not put it back into "classic view"?) version of Windows 2000. I'm glad I skipped it. Windows 7 wasn't really worth the wait though, but it's not bad by Microsoft standards.
It's too bad they don't have any real competition. Unix and derivatives have never qualified as real competition. They're like the team the Harlem Globetrotters play.
I use Win7 Ult x64 and it "agrees with me".
How are we defining "Windows Users"? Are these home users? Parents with college kids that need a laptop? Professionals? Builder/Enthusiasts? Corporate volume users (who do not have a choice in view of IT and company charter)?
I have seen that 99% of what WinXP does in any of the categories I mentioned is still valid, despite WinNT 5.1 being surpassed by WinNT 6.1.
Aside from gaming/entertainment, I have not seen a practical (much less financial) reason for people to switch away from WinXP.
All our PCs here are running XP, even though they all have Vista licenses. I think the only time they will consider upgrading to W7 is when they upgrade the PCs again, which won't be for quite some time.
I prefer Windows 7 as I find the interface a lot easier to multitask with. It's a fantastic interface. Dual-monitor seems to be a lot less hassle as well, compared to XP.
I was quite surprised to find that my previous work PC (Intel E7200, 2GB RAM) ran the same speed, if not better under Windows 7 than it did the ol' XP.
I can understand people not upgrading their current PC's to Win7, but if you buy a new PC and put Windows XP on it.. you won't be getting the most out of your hardware. I think to a lot of XP fans, this won't worry them though.
That's just personal sentiments. XP is famous for its versatility, speed is a non issue with some tweaking and modding. While 2000 is famous for, well,I can't remember anything about that particular OS. With XP at 66%, and Vista+7 around 25%, that would put the 2000+95+98+ME at 9%. I wonder what's the percentage for Windows 2000 alone? Hmmm...
Anyways I've used Windows 7 since it came out. I'm pretty sure the "7" refers to the target age group. Windows Explorer is horrificly broken. It has a start menu that only mime (trapped in a tiny box) could like. Search function is crude. I didn't like any of the included color schemes but it wouldn't let me customize it the way I wanted. It took me 3 months of trying various registry edits, third-party shells & utilities to get anywhere close to computing as efficiently as I did with XP.
Yes there were some improvements in Windows 7 but most of the changes were just utterly ridiculous.