also here is the change log, i will try to poing out good facts.
http://technet2.microsoft.com/Windo...f706-401e-abb5-eec42ea0a03e1033.mspx?mfr=true
With SP1, Windows Vista will report the amount of system memory installed rather than report the amount of system memory available to the OS
Adds support for Direct3D® 10.1, an update to Direct3D 10 that extends the API to support new hardware features
Adds support for exFAT, a new file system supporting larger overall capacity and larger files, which will be used in Flash memory storage and consumer devices
SP1 addresses issues many of the most common causes of crashes and hangs in Windows Vista
Improves performance over Windows Vista’s current performance across the following scenarios:
• 25% faster when copying files locally on the same disk on the same machine
• 45% faster when copying files from a remote non-Windows Vista system to a SP1 system
• 50% faster when copying files from a remote SP1 system to a local SP1 system
Improves the effectiveness of a Windows ReadyBoost™ device in reducing the time to resume from standby and hibernate by increasing the amount of data stored in the ReadyBoost device that can be used during a resume cycle.
Adds full support for the latest IEEE draft of 802.11n wireless networking
Improves OS deployment by enabling 64-bit versions of Windows Vista to be installed from a 32-bit OS
Improves overall install time for updates by optimizing the query for installed OS updates
Users are now required to enter a password hint during the initial setup of Windows Vista SP1
The Grace Timer exploit, which attempts to reset the “grace time” limit between installation and activation to something like the year 2099 in some cases
