It's hard not to be impressed by the A6 engine in the new iPhone 5, since it's now proven to deliver a double-shot of great performance and class-leading battery life. But silicon stories like that don't happen over night or even over the course of a year -- in fact, analyst Linley Gwennap has traced the origins of the A6 all the way back to 2008, when Steve Jobs purchased processor design company P.A. Semi and set one of its teams to work on creating something "insanely great" for mobile devices. Although Apple is stea
