The iPhone, Apple has said numerous times, is three products in one: a cell phone, an Internet device, and Apple’s best ever iPod. Except, as users are finding, it’s not exactly an iPod. Try to use it with one of the over three thousand iPod accessories out there and you’ll probably be surprised by the results: you can’t upgrade it with a larger video display, use it in the car with many recent FM transmitters, or fully enjoy…
