XP SP2
I know, I know ! I'm late :) I guess you probably heard about the RTM release of XP SP2. Just want to share with you some info about it. I got two machine loaded so far, each one bloody took about 2hrs to install. And so far so good, no problems at all, though machine do run a bit slower. Wonder why !!!
Now, couple of resource link for more information about SP2
Jerry - Windows XP SP2 RTM!
Harry - Windows XP SP2 - Key resources for IT Professionals
Raúl - Windows XP Service Pack 2 versión final!
Chris - MSDN Subscribers Have SP2 RTM
Katheleen - Windows XP Service Pack 2 is out
And yes, all copies of Windows XP will be able to install service pack. According to news only minor percentage pirated version of XP using certain product keys will not be able install it.
My build number is Version 5.1 (Build 2600.xpsp_sp2_rtm.040803-2158 :Service Pack 2)