Finally a sign that someone in the US government is thinking a bit. The exclusive carrier deals have absolutely nothing that would benefit the customer. Nothing.
Those who say there's something good about exclusivity should think for a moment.
This site has been full of people who are in favor of more competition to the iPhone from other manufacturers; claiming competition is a good thing.
Competition arises out of each company seeking a competitive advantage. That advantage is rooted in some kind of difference over the competition. If the government were to deny a company the right to maintain that difference then what's the point of free enterprise?
The government created the piecemeal situation of carriers we have today, so if you could have better coverage in your area through Verizon or Sprint, it's not AT&T's fault. What the government is trying to do, once more, is fix a problem it created in the 1970's through further meddling in the communications market.
If you took one look at the investment AT&T has made and is committed to making to have the fastest, largest network of towers in the USA, and at the same time complain how much it costs you to use that network, you'd be darn happy at how little it costs you to be part of it.
If the other carriers were to make the same investment to upgrade their speed and coverage then they might have a basis for feeling left out of the exclusivity because their system could handle the load and provide the speed. However, then you'd be paying more per month for the service as well.
Nothing comes out of thin air without an infrastructure, and those that use the infrastructure will pay for the greater speed and load they put on it.
While I use Verizon because AT&T is weak in my area, and I'd LOVE to have Verizon and an iPhone here, there is no reason to think they will be upgrading my area anytime soon to have the load capacity and speed that will be required to support what the iPhone will require.
In the overall picture of things, the iPhone/AT&T alliance makes the most sense for the next year or so. I suspect it will make less sense as the other carriers, who may be strong in certain markets where AT&T is weak, and who upgrade their infrastructure to support the iPhone.
The infrastructure has to be in place first, or the customers who buy a iPhone or other data-hungry phone, will be ill-served. It was apparent that even AT&T with it's superior infrastructure was sorely tested in some markets with the load the iPhone put on it's infrastructure when it first hit the market. While we'd all love to sport an iPhone today, that functions to it's maximum potential anywhere we are, such a thing is going to evolve along with the infrastructure, not because the Justice Department decrees it.