If you can't wait one more day to see Longhorn, Neowin's got the first screens posted of build 4051, the "PDC Build." There are more screenshots posted on WinBeta, as well. It's not surprising that the pre-beta 4051 leaked before Microsoft was due to distribute it. Instead, I'm surprised that the Redmondiands actually kept the build from leaking before now. Surfing through the 4051 screens, you can get a sense of how Microsoft is hoping to make data and information storage more intuitive and simpler.