This really interesting white paper was published just over a week ago. It describes how Virtual Server 2005 is being used by Microsoft IT almost in a "commodity" capacity. Virtual Server 2005 provided Microsoft with the means to take consolidation to the logical level. The Virtual Server Utility team assumed responsibility for deployment. Internal customers were recruited for the pilot, with aggressive SLA metrics as compelling incentives. I saw a much earlier draft of this document with outlining some of the expectation settings, but I'm staggered to see the end results which are quite astonishing. Rather than giving you the result directly, read for yourself here.