I have the iPhone 3G and have yet to find any "sweet spot" where signal drops that's directly related to hand position. If anything it goes up and down all the time, based on time of day and geographic location. to me, that's ATT's problem. So no, i haven't found this "every cell phone has attenuation issues when improperly held" as a valid arguement.
7/13/10 at 7:11am