"A rose by any other name" may smell as sweet, but pond scum will never smell sweet even if called a rose. Similarly Andriod is more than a name, its an OS designed for a specific job. Should it ever grow into a full blown desktop OS it would become too bloated to perform the job it was intended to do. ChromeOS is important for that very reason. They may want to market it as Android Desktop Edition or some such thing, but it will still not be Android under the hood.