I agree, yet another fascinating look into another Apple gadget. The point about having all the electronics in a small space is a good one, Rob. It completely explains the heat issues Apple has had with its devices and notebook computers.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.