After officially announced October 4 and now it’s time for pre-order iPhone 4S officially opened (7 Oct) in America. You who want a new smartphone or are still weighing whether to upgrade to iPhone 4S or are still comfortable with your current iPhone’s, you can make the guide below as a reference.
This guide created by the site TUAW, made very simple so it is easy to understand. Start in the middle of the box and follow the YES/NO according to the answers of questions given. By following all the guidelines correctly then eventually you can find the iPhone version is most appropriate for your use: iPhone 4S, iPhone 4, or iPhone 3G.iPhone, iPhone tips, Mobile Phone, Mobile Phones, Smart Phones, Smartphone