Supported guest operating systems for Microsoft Hyper-V
The following tables list the operating systems that are supported for use on a virtual machine as a guest operating system. You can run 32-bit and 64-bit guest operating systems at the same time on one server running Hyper-V. The guest operating systems are supported for Hyper-V in Windows Server 2008 R2, Hyper-V in Windows Server 2008 with Service Pack 2, and Hyper-V version 1 (KB950050, “Hyper-V Update for Windows Server 2008 x64 Edition”).
When you find more “supported” Guest OS for Hyper-V let me know at http://twitter.com/jamesvandenberg
In February – March 2012 I will blog more about virtual migration from Vmware to Hyper-V