First, it's all about the web. All apps are web apps. The entire experience takes place within the browser and there are no conventional desktop applications. This means users do not have to deal with installing, managing and updating programs.

Second, because all apps live within the browser, there are significant benefits to security. Unlike traditional operating systems, Chrome OS doesn't trust the applications you run. Each app is contained within a security sandbox making it harder for malware and viruses to infect your computer. Furthermore, Chrome OS barely trusts itself. Every time you restart your computer the operating system verifies the integrity of its code. If your system has been compromised, it is designed to fix itself with a reboot. While no computer can be made completely secure, we're going to make life much harder (and less profitable) for the bad guys. If you dig security, read the Chrome OS Security Overview or watch the video.

Most of all, we are obsessed with speed. We are taking out every unnecessary process, optimizing many operations and running everything possible in parallel. This means you can go from turning on the computer to surfing the web in a few seconds. Our obsession with speed goes all the way down to the metal. We are specifying reference hardware components to create the fastest experience for Google Chrome OS.

There is still a lot of work to do, and we're excited to work with the open source community. We have benefited hugely from projects like GNU, the Linux Kernel, Moblin, Ubuntu, WebKit and many more. We will be contributing our code upstream and engaging closely with these and other open source efforts. Google Chrome OS will be ready for consumers this time next year. Sign up here for updates or if you like building your operating system from source, get involved at chromium.org.