You may not believe this, and I don't believe it as well. But according to this website, some Chinese manufacturers developed a phone called Hiphone with the similar interface and application. It is only sold for less than US$125.
First, they have to watch out the certain legal lawsuit from Apple. But I have to admit those manufacturers become more and more innovative and creative. In fact, they have enough ability to develop their own design, instead of copying others. That's why China should implement IP protection regulation strictly. The law itself will help push manufacturers to be more creative, instead of trying to steal sth from others.