Microsoft has announced new pricing and features for Windows Server 2008, which also includes Hypervisor which would be built-in some versions of the OS while still being available as a standalone product for all others.
When Microsoft released Vista with several different versions, critics pounded on the software giant saying they should follow the standard set by Apple and its single release of OS X. In addition, while that comparison is not completely fair since Windows is a more widespread Operating System the software giant will continue to distribute the Server 2008 product as it did with Vista.

Full story: gameshout.com