Google just gave a sly mention of a desktop version of Chrome OS plugged into a Samsung computer, seen above. And then they didn't say anything else, other than the fact that it's coming... sometime later. It looks small.
Sean Gunn on Working With His Brother
Does putting a Cloud-centric, mobile-purposed OS in a desktop box make a lot of sense? In light of Google's emphasis on being able to drop your Chromebook in a river, trade it with friends, and have the same experience on every one you use, maybe not. Or, maybe you'll want a Chromebox to be just another faucet from which you slurp Chrome cloudiness.