Apple's website seems to suggest the various flavours of iPhone 6 Plus have support from 3 up to 6 separate mobile standards (A1522 vs. A1524 vs. CDMA vs. GSM flavours). From the chips you saw in the teardown, do you think the various support indicates hardware variations for each model? Or do you think the hardware is the same for all models, and the flavours are a result of the regional firmware installed?