History of iPhone
On January 9, 2007, Steve Jobs announced iPhone at the Macworld convention, receiving substantial media attention. Jobs announced that the first iPhone would be released later that year. On June 29, 2007, the first iPhone was released.
AT&amp;T Mobility
On June 29, 2007, Apple's iPhone was introduced to the United States market, and it made AT&T the exclusive carrier for the device within the United States until February 10, 2011, when the iPhone 4 was launched on the Verizon network.