I have a Chromebook, although it's an inexpensive Asus and nothing special. Battery life is superb, mine's constantly either on or in sleep mode as I never switch it off. There is a beta function that can be enabled to use Linux tools, but I think it's still a bit experimental. It's still not what I'd call a fully functioning OS, but it has its uses. I think Chromebooks appeal as a viable alternative to a tablet. I don't think the desktop Chrome OS is as successful.