Eight years ago Steve Jobs introduced the iPhone to the world, and the world changed. Apple didn't invent the smartphone, but they certainly started the craze. Eight years on, we're having a look at how this quintessential smart device has evolved - where it's been, what it's meant to the industry, and where it's about to go. As always, the next step is the most important for us. Once the newest phone is in your hands, it's time for the next one. What's left for Apple to do to the device that changed the way they did business?