How about running 27 Copies of Windows Vista Enterprise SP 1 on a single Windows Server 2008

Well, Microsoft to my knowledge has never - ever contested the fact that Windows Vista's hardware requirements made the latest Windows OS as resource hungry, but at the same time, on the contrary Microsoft did point out that, given the right system, the platform would deliver quite a performance.

And what is mean't by performance in the Microsoft World- Well Keith Combs a Microsoft IT Pro Evangelist has a good explanation and quite a lot of fun experimenting on the same. Combs managed to get 28 Windows operating systems running simultaneously on the same machine. The 28 Windows operating systems consisted of a whooping 27 copies of Windows Vista Enterprise Service Pack 1 on a single Windows Server 2008.

"Twenty Seven Windows Vista Enterprise SP1 Virtual Machines executing courtesy of Windows Server 2008 and Hyper-V. All of this is running on a single laptop, Lenovo ThinkPad T61p with 8GB of Kingston memory," Combs explained.

That's really superb - Hope the guys over the fence are hearing too.