Was having a conversation with an AT&T tech. Interesting that he says the main fault of the iPhone on AT&T is not the network but the radio hardware. That the Verizon iPhone has a Qualcomm chipset which shouldn't have signal issues. The current AT&T iPhone doesn't have a Qualcomm chipset which is the cause of issues. However the AT&T iPhone 5 will have a Qualcomm chipset which will not have signal issues. He also remarked about using a different AT&T device(besides the iPhone) in the same location and how the non iPhone performs much better because of radio hardware. Any comments?