Tom's IT Pro: "The principle of Hyper-V is to allow multiple guest operating systems to run concurrently on a Windows 8 host. The benefit is to save on hardware costs.
Windows 8 contains Hyper-V 3.0 support. The technology is almost identical to the hypervisor built into Windows Server 2008 R2."
In the earliest days of the Surface, it was hard to shake the notion that the line was something of a reference design for Windows 8.