Microsoft Longhorn was recently leaked on the internet. The version leaked is build 6.0.4051.0 (idx02.031001-1340). Certain people got hold of the build and it sparked a race to post screenshots of Microsoft’s upcoming new operating system. Layout wise, its pretty similar to Windows XP but it takes a darkish theme now. Graphics is richer and certain popular software like Internet Explorer has been updated with a new design.
Check out the website for more screenshots : here