Exactly, if my display sucks almost half of my battery life than why do i need to have such resolution in a small area. No matter how far you go on resolution due to limitations of sizing it wont be that effective especially for phones. So i side the Amoled variants which needs no extra lighting. Besides above 9" extreme resolution is fantactic however nobody did reveal such products so.
It seems like pushing resolution beyond what the eye can see for something that the eye is seeing is pointless! Nonetheless, Apple is smart to hedge their bets. From what I understand, the Samsung Galaxy phone shipments last quarter were limited by the supply of their AMOLED display technology (which at least for the time being, has "one upped" the current retina display.)