they're going to release vista's service pack before they introduce XP sp3. and service pack 3 is supposed to be released sometime in the first half of 2008. very vague, i know. but they're not releasing very much more than that at the moment, unless i missed something.
and frankly, i'm somewhat nervous about what that service pack will have in it. they're probably going to be putting some vista themed stuff into it to get us to switch over, and more than likely, they'll include other things like DRM related stuff, and the other various bullcrap associated.
i'm not sure if i even WANT the service pack. because quite frankly, sp2 is working quite well thank you very much... i don't need microsoft fudging it up for me.