Google Chrome OS - A challenge to Windows !!!

Google Chrome OS

Google recently posed an Open Challenge to Microsoft Windows for a fast, secure and efficient Operating System by announcing its next project of Google Chrome OS.

Google Chrome OS is an open source, lightweight operating system that will initially be targeted at netbooks. Later this year Google will open-source its code, and netbooks running Google Chrome OS will be available for consumers in the second half of 2010.

Speed, simplicity and security are the key aspects of Google Chrome OS. Google is designing the OS to be fast and lightweight, to start up and get you onto the web in a few seconds. The user interface is minimal to stay out of your way, and most of the user experience takes place on the web. As in Google Chrome browser, Google is going back to the basics and completely redesigning the underlying security architecture of the OS so that users don't have to deal with viruses, malware and security updates.

Isn't this a tough challenge for OS-Giant Microsoft Windows.?!?!?