I agree that the A4 chip is interesting. But to me the biggest news is that Apple is supplying the iPad with 3g access and an unlocked SIM.  Not that the majority of people will buy an iPad, but they are preempting what I think we'll see in the future with data connectivity, namely that we'll pay a monthly subscription for wireless connectivity the same way many people now pay for cell phones instead of landlines.  We'll expect a carrier of choice and we'll expect the service to be available almost everywhere and on almost every device.