Just announced on technet.com  SP available here is the page you need:

http://technet.microsoft.com/en-us/windows/gg635126?ITPID=technet

Service Pack 1 (SP1) for Windows Server 2008 R2 and Windows 7

Service Pack 1 (SP1) for Windows Server 2008 R2 and Windows 7 helps keep your PCs and servers on the latest support level. It provides ongoing improvements to the Windows operating system (including previous updates delivered over Windows Update and incremental updates to the Windows 7 and Windows Server 2008 R2 platforms based on customer and partner feedback) and makes it easy for organizations to deploy a single set of updates.

Download SP1 for Windows Server 2008 R2 and Windows 7
Order a Windows 7 SP1 DVD
Deploy Windows Server 2008 R2 and Windows 7 with SP1