Apple thinks different about marketing iPhones -click here-

One of the rather interesting marketing aspects I've read about is the idea that the iPhone won't be tied to any specific carrier. Instead, it will be sold "unlocked", requiring you to insert a GSM subscriber identity (SIM) card. The downside: Apple won't get any subsidies or special deals from working with the likes of Cingular or T-Mobile. The upside: such an approach opens up most of the world as the target market instead of just the US. This approach would prove that Apple is thinking globally with its next product segment -- and that phone market could bring literally hundreds of millions of new prospects to Apple.