The iPhone combines touch screen technology and iPod capabilities with the functionality of a phone. It even allows you to video chat like you do on the computer. With games, apps, music, and internet the iPhone is really not missing much. The iPhone was an instant success when it was release, people lined the streets to be one of the first to have the product. Even after it was apart of AT&T for so long, when it was released onto Verizions network people came running.
The iPhone single handedly threatens the Android market. Apple holds the highest rank for app sales, which has been one of the newest innovations in smart phone technology. As Android struggles to release multiple new phones that support the software Apple only has to worry about one. With all of their efforts they are also able to fully focus on the next iPhone which is predicted to be released on the Verizon network around July according to Apple insiders.
Developers love the iPhone because the system is so standard it is much easier to design applications for a standard phone. Android designers have to take more time and effort during the designing process because not every droid phone is universally the same. So not only are the customers buying more iPhones the developers who design apps for phones are more interested in doing so for the iPhone. It is easy to see why the iPhone is such a popular device.