So long as it corrects the only real issue Win8 had in that it has a proper UI for each environment type vs forcing a one for all look, then it will be good.
Android has essentially been moving this way as well, of course it had two distinct tiers in mobile then chromeOS. But that is steadily merging as well including the new AndroidTV experience to be unveiled later this month.
Next Apple will "invent" this with iOS9 in a year or two.










