Wondering what Windows Vista looks like and how it’s different? Check out http://www.vistatestdrive.com!
As one of my co-workers said: "<This> is just about the coolest thing ever… but I’m dying to know the back-end specs on how we pulled this off? I logged in and the VM I was using was configured with 1GB of RAM!"
The answer to his question is that it’s all based on Microsoft Virtual Server R2 in Microsoft’s Datacenter.