Here is another video from the Google Chromium team which will show up the security features of Google Chrome OS and reagrding its fast boot time and also Google sad in its official announcement that they will make Chromium boot in just 3 seconds.
Chromium OS security:
Chormium OS fast boot:
Google Chrome OS open Source Project announcement:
“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.” – was stated in the official release annoucement.