Performance, that's the part I'm interested on from this SP1 coming next year. And this is what the White Paper says about this topic:
The following list describes some of the performance improvements that Windows Vista SP1 will include:
- Improves the speed of copying and extracting files.
- Improves the time to become active from Hibernate and Resume modes.
- Improves the performance of domain-joined PCs when operating off the domain; in the current release version of Windows Vista, users would experience long delays when opening the File dialog box.
- Improves battery life by reducing CPU utilization by not redrawing the screen as frequently, on certain computers.
- Improves the logon experience by removing the occasional 10-second delay between pressing CTRL-ALT-DEL and the password prompt displaying.
- Addresses an issue in the current version of Windows Vista that makes browsing network file shares consume significant bandwidth and not perform as fast as expected.
I underlined those points that I think are affecting directly our UMPCs, as you can see that's more than 50% of the points that will be addressed in this service pack.