When the iPhone emerged in 2007, it came with all the promise and pomp of a major Steve Jobs announcement, highlighting its user interface and slick design as key selling points. We know now that the iPhone transformed the mobile phone business, the internet economy and, in many ways, society as a whole. But technically speaking, the iPhone was not very innovative.
Its software and the interface idea were based on the iPod, which was already reinventing the digital music industry. Touchscreens had appeared on earlier phone and tablet