SP1 for Windows Server 2008 R2 will also be released in the same timeframe, according to the company's TechNet Evaluation Center website.

The Windows 7 SP1 will include updates based on those delivered by the Windows Update online service since the OS's launch last October, as well as additional tweaks based on customer feedback.

The service pack for Windows Server 2008 R2 will focus on improvements to the virtual desktop infrastructure technology.

Microsoft announced the availability of the public beta versions of the first service packs for Windows 7 and Windows Server 2008 R2 SP1 earlier this month at its Worldwide Partner Conference.

More: http://www.silicon.com/technology/software/2010/07/21/microsoft-windows-7-sp1-coming-in-early-2011-39746126/