It's no question that AT&T has been extremely lucky to be the only US carrier for iPhone, but could their days of exclusivity be limited? As the CEO of AT&T said on Thursday at a conference in California, the iPhone will not be exclusive to AT&T forever. Quoted by CNET, Randall Stephenson said, "There will be a day when you are not exclusive with the iPhone." He refused to detail any information about the contractual agreement between AT&T and Apple.

He did talk about the quality of AT&Ts service, saying that all wireless companies experience weak spots in their service. "There's no greater cause of churn than network quality, [and] we have the lowest churn in the company's history." 

For those who want an iPhone on another network, you now have solice in knowing the question is not if it will happen, but when it will happen.