Filed under: iPhoneThe iPhone 4's outer ring of antennas has been earning some grief lately as some owners have found that reception can change even based on where your hand is placed. Even Steve has weighed in on this issue via his itchy email finger.
Spencer Webb of AntennaSys (an "antenna design" firm) knows the science, though, and he's shared a little outsider wisdom on how the iPhone's metal actually works.
Webb starts b
