That reminds me; I was listening to a comedy channel on SiriusXM, and it played an old Lewis Black bit. And in it, he referenced using a Blackberry. And I was struck even at the time at how transformative the iPhone was, even though it did nothing original. Every feature of the earliest iPhone existed in a mobile form already...it was just combining them together and executing in a reasonable fashion. Microsoft had tried in the 90s but the tech wasn't there. Blackberry had an extremely successful product, but it mostly targeted business users, with productivity apps, and its use of a physical keyboard made it a chore to use. The iPhone did nothing new...except that it could do all the things the business targeting devices could, while instead targeting consumers, and provided a touchscreen (itself not a new invention, but nevertheless making it stand out in terms of usability).
Execution and market positioning are everything.