Re: Watch out Microsoft?
Do you really think the number of displays is really likely to be a problem? I think the bigger issue is the toolkit for the different form factors. I'm pretty confident the compositors can handle converting the virtual display into signals for different ones, or, just let some kind of docking station deal with that.
I don't expect the market for these devices to be large initially but I guess the companies that should be really worried are the PC makers: the few that are left just got even more competition.
Of course, the ChromeOS boys could still attempt to nip this in the bud, because according them the Gospel of Google is that devices with keyboards must use ChromeOS.