iPhones have been successful through the years and in the terms of evolution because of the technology we have now. The technology we have allowed us to experiment with different things, and it lead to great things. For example, we can apply fingerprint technology and use it for a Touch ID button in place of a regular home button. Another good thing that advances the technology is the new flat design that iOS 7 provides. It is simple, and it also gives out a nice look to the iPhone. Technology today has made the iPhone really great and turned out to be really successful.