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.
IPhone (1st generation)
iPhone OS 2 was released on July 11, 2008, around the same time as the release of the iPhone 3G, and introduced third-party applications, Microsoft Exchange support, push e-mail, and other enhancements.