The Genius in Apple's Vertical Platform - steve's blog:
It’s clear from a strategic perspective that Apple has thought about vertical integration incredibly deeply. Their choice to enter the CPU business was not made lightly, and reflects a platform heritage and an ability to steer developers (afforded by huge network effects). We will likely find out what's really inside the A4 soon. But one thing is already clear: Apple is sowing the groundwork to make architecture changes seamless—developers will only need to flip a switch to give their apps blazing, native performance.
I find it fascinating that Apple has been so good at diverting attention to the Flash argument, that people don’t see the true genius behind Steve Job’s vision and moves. Apple is setting the stage to become one of the biggest winners in the storied history of vertically integrated companies.