Redesigning Operating System, yes that is what Google just did. Speed, simplicty and lightweigt that is what is going to dominate. Most of the data stays on the web so you get the minimal operating systems installed on your computer. Once again what google says is that you don’t have to spend that much time in booting up the computer, waiting for things to load which you don’t need, then start the browser just to do some small work. No need to spend that much money, time and efforts in moving your work from one machine to another machine. Read more about this at Google Blog. Although similarly derived from a Linux kernel and offered as open source software, Chrome OS is separate from Android, says Google VP, Product Management, Sundar Pichai.