Unfortunately, all businesses who deal with any country, are involved with politics. Compared to many Asian nations, the influence business has here in the US is moderate. It would be easy to dismiss this issue, as so many have in the past, but it puts Apple in a tough spot. They either pay what could amount to blackmail, or shutdown operations for a couple of years. What is not well recognized is that often, the actual construction of new factories is relatively quick. It is the hoops that must be jumped through to get permission, and then the hiring and training of employees. Look at the situation with hard drives. The major factories were concentrated in a zone that got flooded. It has been a long time now and they are saying that it will take until 2014 to fully restore production. And they have the permits and labor force already.
I have no doubts that Apple is contemplating a move out of China, but it may take them a decade to do so. If the Chinese get their way, are people going to be willing to pay another $100 for their iPads?