Google released the source code for Chrome OS on Thursday, beginning the process of producing a browser-based operating system by the end of 2010 for lower-end PCs called Netbooks. Although Linux runs under the covers, the applications all run within Google's browser.
The upper-left corner has an applications menu with links to a variety of Web applications. Those applications can be permanently lodged as narrow tabs between that menu and ordinary browser tabs.
Although screen real estate is tight--especially given the presence of a clock and status icons to indicate Wi-Fi connections and the like in the upper right--more than one browser can be open at a time even if others are hidden in the background.
