The effect of the iPhone's popularity on AT&T can't be overstated. I'm starting to think that what Jobs said at D8 about this subject is true. Jobs says that any network would have had similar issues handling the load of iPhone users. To be clear, I'm not a fan of AT&T but I do know that they have had issues in cities like San Francisco because of regulatory restriction on antenna sizes. I wish Apple would open the iphone up to other GSM carriers. Hopefully that would spread the load across a few carriers. We can hope.