This might seem like obscene fast <i>now</i>, but remember, most people replace their phone only when the battery dies, not when next years model comes out.<p>In other words, thanks to the “overkill” that Apple is willing to sell now, their user five years down the line will <i>still</i> feel that their old phone is a premium product. And they’ll be happy to buy a replacing iPhone for it when it does die.