So I tried the iPhone 5 at the Apple Store today. Just as I expected, the screen was not impressive as it is still so puny compared to every other major smartphone on the market. It really needs more surface area, specifically width, in order to be useful to do things like reading webpages in portrait mode comfortably. A 4 inch 16:9 screen was good.......3 years ago. This is 2012, get with the program Apple. Trying the iPhone 5 out in person has cemented by decision to go with something else for my next smartphone. After trying the Samsung Galaxy S3 and seeing its much larger screen, my God, what a revelation on what I've had to put up with on the tiny screens of iPhones.
Apple was never going to double the screen size. Every smartphone on the market has made a gradual increase in size.
By the time Apple make it bigger the bigger screen phase will be over as they will realise people want smaller practical phones not phones which should be tablets.
Apple would never have even went 4" if it meant they couldn't make it 20% slimmer.