I've always predicted that the focus of ChromeOS is the future for mass market end-user OS:

A hassle-free OS that works like an appliance that's easy enough for everyone to use (since everyone already knows how to use a browser).

Turn it on and become instantly productive, automatically save to the cloud so users no longer have to worry about Files/Directories/Backups/etc. Computer dies? no problem, sign-in into a new ChromeOS and regain access to your entire environment.

Whilst it's still not useful for power users/developers, I'm predicting it will be the preferred managed OS for many corporate office users.