Yea, Vista SP1 is out and I read some bad reports since release...wait and watch. XP SP3 would be available around middle of April according to some reliable sources. I'm eagerly waiting for it to make a slipstreamed WinXP SP3 CD
I don't think that will be possible anymore. Just if they release a slipstream of XP with SP1. The same thing is happening now with Vista SP1.
I mean I have the orginial release XP CD (no SP) and will make a slipstreamed one myself when SP3 is available.