There’s a lot more to simple design than you think. A product such as the iPhone may appear clean and unobtrusive to the naked eye, but there’s a lot going on beneath the surface that most people don’t know about. Nor do they need to. They only need to know that it will do what they need it to do, when they need it to do it.
That’s the underlying principle of Apple-style minimal design. Not necessarily to “strip” something down, but to make sure it’s easy to figure out and access with as few distractions as possible.