Apple's functional structure sounds like a good way to maintain consistency across product designs and nimbleness of corporate strategy.
Google's (and Microsoft's) product-oriented structure sounds like a good way to have fragment product designs and strategies and create political fiefdoms. "The Innovator's Dilemma" suggests that by placing too great an emphasis on satisfying customers' current needs (with existing products), companies fail to adapt or adopt new technology that will meet customers' unstated or future needs.
Google's (and Microsoft's) product-oriented structure sounds like a good way to have fragment product designs and strategies and create political fiefdoms. "The Innovator's Dilemma" suggests that by placing too great an emphasis on satisfying customers' current needs (with existing products), companies fail to adapt or adopt new technology that will meet customers' unstated or future needs.