Windows 7 SP1 RTM has finally been released to the public.
Get via windows update or go here to get stand-alone install or to order dvd:
Standalone Version (x86 and x64)
Do not click download if you are updating just one computer: A smaller, more appropriate download is now available on Windows Update. The best way to ensure you get Windows 7 and Windows Server 2008 R2 SP1 is by turning on the Automatic Updates feature. You can use our step-by-step instructions or, if you prefer, let us do it for you. If Windows Update is not offering you the option to install the service pack, see KB 2498452. If you are encountering a problem when installing the service pack from Windows update, see Troubleshoot problems installing a service pack for Windows 7 or Windows Server 2008 R2.
Steps to take before installing Windows 7 Service Pack 1 from the Microsoft Download Center
If you choose to install Windows 7 SP1 from the Microsoft Download Center Web site, there are steps that you can take to make sure that you have a good experience when you install the service pack. This article, KB 2505743, provides some suggestions to improve your experience when you install Windows 7 SP1 from the Microsoft Download Center Web site.