Chrome OS, Google's newly announced computer operating system, is coming this Autumn and promises to revolutionize netbooks and other underpowered machines. Essentially, the OS is a small, fast-booting platform whose purpose is to run a browser, and from there all the Google apps and other web services you know and love. But why bother? Your netbook already has a browser and access to Google's applications. What could Chrome do for you and your netbook?