Thank you. That's interesting. However, mine was more a policy question. ChromeOS is not thought to be just another OS you can download and install. It will be mainly bound to new devices. I don't understand why.

Presumably it's like OS X -- it's a lot harder to make an OS that runs on any old hardware than it is if you know the hardware ahead of time.

Absolutely. Also, there are plenty of great open source developers contributing to the Chromium project to help get the OS working on multiple platforms. If you have an Eee or Dell Mini, for example, there are builds for those freely available.