Hey Don -
This is the link for the Office SP3, not the operating system service pack. My understanding was that the Vista service pack (1) would be available for early beta, but the XP one would not be available to the public for a couple of months. But nothing spectacular in the XP service pack. It is supposed to increase speed and of course rollup all the hundreds of service fixes that have happened over the last 3-4 years since SP2.