Yes, we're on virtualization constantly (as that is what is currently driving newer/lower costs), and this new idea looks like it has potential:  a silver box with USB and keyboard, video, and mouse (hence KVM for those who haven't heard the term before) and a NIC (network interface card).  Its called a Pano and the thing only draws 5 watts and is SUPPOSED to be every bit a virtual machine.  Pricing is not disclosed (supposed savings of 70% TCO over 3 years for a total savings of $3200 which would work out to a total of $40.00 per month per PC if the math works...), and of course you need a server to host the Pano Server on.  Its in Alpha now and supposed to be available by September... http://www.panologic.com/