Linux and *BSD need a lot of polish if they ever hope to assault the desktop. Chrome OS is supposed to be based on Linux but that’s the internals that people never see. The actual desktop is rendered from the Chrome browser and while this is akin to a dumb terminal it is still kludgy because it’s all running on top of X. And while X is powerful… it’s simply not modern enough to compete. (The same can be said for the various desktop managers). Frankly they all suck. The windows desktop is better than than an of the X/wm derivatives… even though Windows 7 seems to have chunky controls.