In this segment from the MarketFoolery podcast, host Chris Hill and Motley Fool Chief Investment Officer Andy Cross talk Apple (NASDAQ: AAPL), which put out yet another remarkable set of quarterly numbers. This was its fourth straight period of double-digit percentage growth and its seventh consecutive quarter of accelerating growth.For the tech giant, the Fools say, it's less of a big question anymore how much it can hike its iPhone unit sales, because it can keep raising average prices and hold on to its market share.