the one you want and the one you don't. It is packed with improvements and cool stuff, but it still carries a whiff of Vista that may put XP diehards off. That said, people who have gotten used to Vista will enjoy the fact that Windows 7 looks the ame but acts a whole lot better.
Like many people who compute both at home and at work, I use XP and Vista as well as Mac OS X Leopard, and I like elements of all three. So I've been watching the beta and RC versions of Windows 7 very closely. Does the final "release to manufacturing" (RTM) code -- the same code that will ship with new PCs and retail versions of Windows 7 in October -- merit a jump from any of my current platforms?
Well, yes and no.
http://www.pcworld.com/article/169553/windows_7_four_reasons_to_upgrade_four_reasons_to_stay_away.html