Well, the suppliers supply to other companies too, and they use raw materials from other suppliers themselves. Why would the they move to EU or US for a single customer? Apple squeezes their suppliers so there's no real love there to begin with. The whole manufacturing sector in China is a massive web of tiny vendors tightly coupled with each other. Its huge stash of rare earth metals certainly helps too. I don't believe we're going to see manufacturing move outside of China outside of a major world destabilizing event. I'd estimate that China is about a decade or two away from having its own cutting edge chips and its dependence on external vendors is going to diminish even further. That's not necessarily bad IMHO, every culture and country has their time on the top of the heap. I guess its China's turn.. in a "BIG WAY".