May, 10th 2009 Microsoft announced availability for Windows Server 2008 R2.
Windows Server 2008 R2 builds on the award-winning foundation of Windows Server 2008, expanding existing technology and adding new features to enable organizations to increase the reliability and flexibility of their server infrastructures. New virtualization tools, Web resources, management enhancements, and exciting Windows 7 integration help save time, reduce costs, and provide a platform for a dynamic and efficiently managed data center. Powerful tools such as Internet Information Services (IIS) version 7.5, updated Server Manager and Hyper-V platforms and Windows PowerShell version 2.0 combine to give customers greater control, increased efficiency and the ability to react to front-line business needs faster than ever before.
Visit the Microsoft Windows Server Division Team Blog for further information direct from the product group.
Visit http://www.microsoft.com/windowsserver2008/ for further detailed information. You can also download a free copy of Windows Server 2008 R2 so you can begin testing.