Download Windows 7 SP1 RTM (Final) from MSDN / TechNet
Microsoft has just released RTM (final) version of Windows 7 Service Pack 1 and Windows Server 2008 R2 Service Pack 1 for their MSDN and TechNet subscribers. Public version will be available on February 22nd via Microsoft Download Center and Windows Update.
The build number of final RTM version is 7601.17514.101119-1850, which means that it was compiled on 19th November 2010.
Like most of the Service Packs for Microsoft Windows, this one follows in the same direction, containing all the security and recommended updates that you would usually receive through Windows Update. Windows 7 SP1 also includes RemoteFX which will provide rich 3D experience for remote computing.