Or maybe it's the price.

Although new AT&T customers can buy the iPhone 3G S at the lowest prices, many existing iPhone owners cannot. And that has turned some of them into a . More than 14,000 have signed a petition on Twitter demanding satisfaction.

Just as important is that the whole mobile phone pricing structure is a Rube Goldberg-like construction that's right up there with new car and airline ticket pricing on the Confusion Meter.

Who can figure it out? Not even the .

We're not sure if we understand it all, but we have answers to some questions on pricing. We think.