Microsoft published the documentation for Windows 7 and Windows Server 2008 R2 Service Pack 1 Beta

The following documentation for Windows 7 and Windows Server 2008 R2 Service Pack 1 Beta is provided here:

- Hotfixes and Security Updates included in Windows 7 and Windows Server 2008 R2 Service Pack 1 Beta
- Windows 7 and Windows Server 2008 R2 SP1 Beta Notable Changes
- Windows 7 and Windows Server 2008 R2 SP1 Beta Test Guidance For additional information (including how to deploy the service pack and how to join the public beta)

  Documentation for Windows 7 and Windows Server 2008 R2 Service Pack 1 Beta (KB976932)