You are absolutely spot on about these things coming in pulses. That way people get new features and the companies get their profits! Win-Win.

As for what's next, yes, everything is going to get 'smart' and connected and you are right that we wouldn't need powerful chips in every single thing. That would be waste of resources. And yeah, AR will play a huge role as I think the whole of computing industry could go towards that direction. It would also enable any surface to be used as screen. If only companies can figure out to integrate this tech in some kind of simple glasses that are indistinguishable from the regular sunglasses and maybe even in contact lenses!