NgoHQ posted the notable changes of the upcoming Windows 7 Service Pack 1

Service Pack 1 for Windows 7 and Windows Server 2008 R2 will include previously released updates and will deliver a number of powerful new features for Windows Server 2008 R2 for virtualization and Virtual Desktop Infrastructure (VDI). New techniques in memory management with the addition of Dynamic Memory functionality, as well as the ability to deliver full-fidelity graphic experiences in remote and virtualized environments with Microsoft RemoteFX, enable organizations to realize the greatest possible potential from their infrastructure. The resulting increase in efficiency and functionality allows for accelerated server consolidation, a more powerful virtualized desktop infrastructure, and an increased return on technology investments.

The impact of SP1 on the Windows 7 client operating system is considered to be minimal. Included changes are expected to address minor usability issues in specific scenarios, as outlined in this document. Microsoft recommends that organizations do not need to wait for SP1 to begin receiving the value of Windows 7 today as we don't anticipate the SP1 for Windows 7 to be substantial.

  Windows 7 Service Pack 1 Notable Changes