VS2010 SP1 is now available see:
Please note the warning:
"Note: Do not install this service pack if you have downloaded and installed the stand-alone ‘Microsoft Windows SDK for Windows 7 and .NET Framework 4 (Windows SDK v7.1)’ and you are using the x64 or IA64 compilers that were included in that download. Please see the related article for more information."
There is an ISO image available -- see the first link above.