This just landed in my inbox:
Today Microsoft announced the release of Windows Vista and Windows Server 2008 SP2 RC to MSDN and TechNet subscribers. These customers are able to access SP2 RC via the TechNet and MSDN download sites. Next week, Microsoft will make SP2 RC available to the public via TechNet.
You can read more about SP2 on the Windows team blog and the Windows Server team blog.
I’ve been running the SP2 beta on one system here without any untoward incidents to report.