My wife and I got our phones the day before the release. The only issue we've had is dropping calls in areas we hadn't before. It was happening quite frequently. No death grip issues or other issues. I tried the electrical tape/sim card frame thing, restore, restore and manually reinstall apps, etc. Nothing. I had read that Apple was changing something in the manufacturing process to improve reception. Something about insulating components or something in the phone and that's why after the initial batch, shipments were delayed. I actually read in an Apple thread yesterday that if you turn off 3G, it improves your signal. Holy Moley! Let's all go back to the first gen then! People actually considered this an acceptable solution. Another guy said that he bought a 3G microcell to fix this issue. Again, Holy Moley! It's not like you can take it with you! Anyways, I'll post my honest opinion on the replacement phones after a few days of use and beyond as needed. I hope this may help those who are having similar issues.