Microsoft today announced the availability of Windows Vista SP1 RC
And this time its going to be available to public. From the Vista Team blog,
Today we’re making available the release candidate (RC) of Windows Vista SP1 via Microsoft Connect, and tomorrow subscribers to TechNet and MDSN will have access to those RC bits too. In addition, the RC will be available to the public next week via Microsoft’s Download Center.
And Windows Server 2008 RC1 was also made available for testing today