Google Chrome OS will never be of use to me.
Chrome OS relies on the concept of an unlimited internet connection, and the ability to access it anywhere.
I live in the middle of nowhere, and as such, I have satellite internet through Gotsky/WildBlue. It sucks, I won't lie, but there's nothing else to do here.
Basically, I have a download limit of 12gb over 30 rolling days.
Moreover, if bad weather hits, I lose my connection.
If my internet is down, I can't afford for my computers to become completely useless, if all of my applications are cloud-based. I also have issues with keeping everything on the cloud, because people *have* figured out ways of installing packages onto the underlying system of Chrome OS (Some *nix, iirc).
Chrome OS is a novel concept, but Google should look at their concept before thinking that it will work for even people who spend lots of time online.