shystershep writes "Rumors have been floating around for years that Google was planning an OS to compete with Window. As of Tuesday night, it is official: "So today, we're announcing a new project that's a natural extension of Google Chrome — the Google Chrome Operating System. It's our attempt to re-think what operating systems should be. Google Chrome OS is an open source, lightweight operating system that will initially be targeted at netbooks. Later this year we will open-source its code, and netbooks running Google Chrome OS will be available for consumers in the second half of 2010." It is separate from the Android mobile OS, will run on both x86 and ARM processors, and is aimed primarily at web use. Other than that, details are scarce."