Although we’d been hearing that Apple had slowed down iPhone production, the company is still on track to hit its goal of selling 10 million units this year, according to COO Tim Cook. Cook, speaking at a Goldman Sachs investor's conference in Vegas, said that "Apple is not married to the single, exclusive-carrier model," and that Apple is open to new ways of selling the iPhone. That's an interesting change in tone from the usual "we need carrier relationships to make things like Visual Voicemail work" lines we've heard, but it's not necessarily out of the blue as in practice fighting against black market sells of unlocked iPhones is almost impossible. But the situation is not that simple as AT&T has a five-year exclusive deal in the Unites States.