Apple iPhone is so popular, I can't help wondering why. In my opinion, the best explanation is fashionable outlet and reasonable user experience. Talk about these two advantages, I first think about Japanese Cell Phones. While due to their some kind strategy, their phones are not widely sold worldwide.
While there is no doubt that Apple is one of the most successful companies in recent years, and nothing can cover Steve Jobs's success. Some guys even made a song for him: http://www.youtube.com/watch?v=ia4joyGYG_A