PDC 2008 day 1: Ray Ozzie unveiled "Windows Azure", our operating system for the cloud. After years of thinking of "operating system" as something that runs a computer, it's weird to think about the meaning of the term with respect to a large set of computers. It's not the collection of OSs for each individual computer, but a set of services that enable development, deployment and operations of web services. Very cool stuff, actually, though as a graphics guy I have to step quite a bit outside of my safe zone to get excited about the potential.