Get ready for it because the final release to manufacturing (RTM) of
Windows 7 and Windows Server 2008 R2 Service Pack 1 (SP1) have just been handed off to Microsoft's OEM partners. What that means for you is that starting February 22nd you can download Windows 7 and Windows Server 2008 R2 SP1 from the Microsoft Download Center or via Windows Update. MSDN and TechNet subscribers will see the official updates a bit earlier on February 16th... about the same time they'll be released
unofficially into the bitTorrent and usenet wilds.
From Engadget