The day before yesterday, when I got off work and waitting for the elevator arrival, I meet the Project Manager, he told me that he have asked my leader for the lack of IOS developer, and say the android developer is enough, suggest I should not transfer as android developer, should transfer as IOS developer, then my leader agree his opinion. So I will become the official IOS developer. It is a so good news, and I want to do this develop for a long time. Although I have the android develop foundation, I will easy to begin the android develop. But the treatment of this developer lower and lower. For the high of the IOS develop doorsill, and the good sell of iphone, the IOS developer's treatment is higher. And my character is like to do the things which have challenge. It is really a big challenge for I never use the IOS, and I do not have any of the kind of machine which use mac os. In order to become a IOS developer, I should study the use way of IOS, and study the objctive c which used to develop application that can run at mac os, and I should study the ios sdk and so on. I do not have the mac machine at home, so I should install virtual machine in my windows, then install mac os in this virtual machine, then install xcode in this mac os, then I can write code in xcode.