If you're interested to see what the next XP service pack has to offer you can get it by following the instructions in the article linked below. caveat: This is release candidate software. It's not the final public release of XP's SP3.
Overview Microsoft is allowing Windows XP Service Pack 2 machines to be offered Windows XP Service Pack 3 Release Candidate 2 via Windows Update. Windows XP Service Pack 3 will be offered on Windows Update when Service Pack 3 releases in the first half of 2008.
