A 6.24 CNET report by Erica Ogg about the dropped-call complaints dogging the iPhone 4 explains the basic beef — i.e., touching the metal antenna band that runs around the iPhone 4, especially if you’re holding the iPhone 4 in your left hand, “interrupts reception, slowly causing the phone to lose its signal.”
There’s a solution, apparently, in the rubber bumper (which costs about $30 bills) that fits around the phone. I was given one and I haven’t had any dropped-call issues…yet. But it is rather sickening to consider that a highly touted device like this would actually drop calls due to touching the lower left part of the metal band with your naked skin. I mean, I spent most of the day in line to buy this device and a development of this kind is appalling. The Apple guys should be brought up on charges.