I read some blog posts. The people are comparing Chrome OS to Windows. Windows has a strong competitor now. But I think Google uses "Chrome" as the name of their new OS. I think they are thinking in a different approach. Both "Chrome" OS and Browser are tools for them to integrated their Google Apps with your computer. So, their approach helps the computer users to get access to the Cloud. To summarize, I will say Chrome OS + netbook is the tool to access Google Apps and that is an extension of Google Apps or the user front of Google Apps.