i had a iPhone 4 for about 3 years, i didnt upgrade as i was waiting on the iPhone 5 to come out, when it did i was so disappointed i didn't upgrade. ive since gone to a Sony xperia z and although its technically really good, its not the phone for me. i miss my iPhone, there both just very different but i like my phone to be simple and a iPhone is just that. Also the internet on the Sony pisses me off. i am constantly having to turn wifi on and off, when its on, the phone doesn't seem to find 3g ill be 100% going back to an iPhone