I have the new iPhone 3G and my wife has the original iPhone. And clearly the 3G iPhone has issues with signal reception. Over the last 3 weeks I have observed many times where my 3G iPhone gets no signal my wife's older iPhone still gets at least minimal signal and is able to be make and receive calls. Like we were at Home Depot last week and typically when you are at Home Depot or in a Walmart or a Sam's Club you don't get GSM signal unless you are very close to the entrance. Something to do with the large metal structure I suppose that these buildings are made up of. Anyway we were about in the center of the building and my 3G iPhone had no service and my wife's phone showed 1 bar and she was able to make and receive calls with good voice/sound clarity. Same thing last night. We were at a restaurant and I had no service while she had 1 bar and was able to make/recieve calls. What a bummer!!!