The iPhone went on sale fifteen years ago today.

Steve Jobs announced on January 9, 2007, that the first Apple product would be the iPhone. Jobs said that an iPod, a phone, and an internet mobile communicator are not three separate devices. He said that Apple is going to make a new phone.

The mobile technology industry has changed forever since the introduction of the iPhone. It took 74 days after its launch for Apple to sell one million of its phones. The retail price for the first iPhone was over $500.

The first iPhone did not have advanced performance capabilities, cameras, and the App Store, which have since been added. In an interview that was published yesterday ahead of the anniversary, Apple's Greg Joswiak and other Apple executives discussed what it was like to launch the iPhone and how it shaped the industry for years to come.