Interestingly, the US and China are the only two countries that still have carrier exclusivity for the iPhone. In all other markets, the iPhone is available through all major carriers. There's no word on how much the wireless providers have paid and will pay for such exclusivity, and given Apple's tight-lipped history, it's likely we'll never know those figures. Who can blame Verizon, though? After waiting years to actually sell the device, could you imagine what would happen if Apple chose to open it up to the rest of the US carriers, too?