Microsoft had not announced officially though according to the Russian site Wzor Windows 7 SP1 and Windows Server 2008 R2 has already been released to manufacturing.Further adding to it the SP1 would be available to MSDN and TechNet subscribers on February 16, and will be Released for public on February 22.
The Service Pack 1 contains just 2 major fixes which wont affect the normal users.
The RTM build as predicted is 7601.17514.101119-1850 which was compiled on January 19 which has already leaked and is available on various torrent and file sharing websites.
