Note: This blog post, of course, is now out of date. Finally. The iPhone is available now on other phone networks. A long wait for a great phone.
The Apple iPhone is gorgeous but it doesn't work in most of the Rocky Mountain states if you live more than a few miles from a major Interstate. The iPhone is great, desirable, fantastic. The network Apple chose to use is crippled, inadequate, sadly lacking in coverage.
I would have stood in line for the iPhone, but I won't stand in line for the inadequate ATT network. I can wait.
I'm sure Jobs had his reasons for choosing the cut-rate ATT network, but it doesn't serve his image for excellence. It's possible that the early implementation of the iPhone required a disabled network.