Windows Server 2008 comes with server and presentation virtualization, IIS 7.0, Server Core, PowerShell, Network Access Protection, Server Manager, and improved networking and clustering, says the company.
It also includes a thin (under a megabyte), hypervisor-based software virtualisation layer that runs between the hardware and the operating system. Supporting up to 32GB per machine, WS2K8 supports all manner of shiny things such as iSCSI and fibre channel SANs.
It doesn't get much more exciting than this, here. ยต