Service pack 1 for Windows 2008 R2 and Windows 7 is now RTM and released to MSDN and technet subscribers. The service pack will be available for public download on 22nd of Feb. This release adds new features for Windows 2008 R2. Major features are for Hyper-V and they are...

  • Remote FX (details here)
  • Dynamic Memory (details here)

For developers, one major issue that this Service Pack fixes is the crash of Windows 2008 R2 on some laptops when virtualization is enabled and Hyper-V service is installed. This is due to some issues with some graphics cards and drivers.

Visit the technet Homepage for windows 2008 R2 SP1 and Windows 2008 R2 team blog here.