Microsoft has now released Service Pack 2. Included in this update is all of the cumlative updates since Service Pack 1 and the following improvements:
An STSADM command line that scans your server farm to establish whether it is ready for upgrade to the next version of SharePoint and provides feedback and best practice recommendations on your current environment.
SP2 offers support for a broader range of Web browsers.
You can download the service Pack from here http://technet.microsoft.com/en-us/office/sharepointserver/bb735839.aspx#SP2