This is quite the service pack....
- Database Mirroring is now supported in production, the extra feedback we got from our Technology Adoption Program Partners has allowed us to provide an even better solution.
- SQL Server Management Studio - Express Edition, if ever there was a tool that needed a cool (short) codename...
- Express Advanced (inc Reporting and Full Text)
- More SAP Connectivity
- Lots of other fixes, changes.
Its going to be live in a few hours, I'll post the link once I get it.
Update: Dan has a plethora of good links on SP1 here.