Paul Thurrott has some details on what to expect from the Windows Vista/Server 2008 Service Pack 2. The notes include a couple of stand out items, blu-ray disk writing, integrated windows search 4.0, better power management and general compatibility/reliability/performance improvements. Oh wait, hardly any stand out items. Very boring in fact. Course, this might be a good thing... I'm not sure if you want huge changes from a service pack.