wikipedia.org: Google Chrome OS is an upcoming Linux-based, open source operating system designed by Google to work exclusively with web applications. Announced on July 7, 2009, Chrome OS is set to have a publicly available stable release during the second half of 2010.
Chrome OS will not be available as a download to run and install. Instead, the operating system will only ship on specific hardware from Google's manufacturing partners. The user interface takes a minimalist approach, resembling that of the Chrome web browser. Because the only application on the device will be a browser incorporating a media player, Google Chrome OS is aimed at users who spend most of their time on the Internet.
Chrome OS 0.6.427 is available! Now with support for native Windows applications!
Download Live CD here: http://getchrome.eu/download.php