Doesn't matter how old the 4S is now, it's obvious people want big screens. 4.5 and bigger wouldn't sell if people didn't want one. I think that's quite obvious and Apple should act fast or they risk losing market quickly. A 4 inch iPhone now when 4.7 is normal would be a little toy. Bigger than the 3.5 we have now, but still really small. Regardless of your opinion on Android, people just want big phones, including me and 4 just won't cut it.