I can't believe anyone wants a bigger screen. It's a phone, not a computer. I use it to quickly check email/web pages on the go, not write an essay. A bigger screen just means it ties up more room in my pocket.
The only real use for a bigger screen is that using the internet is considerably more usable. The easiest way to see this is to compare the internet on an iPhone vs iPad - even though you have exactly the same inputs (assuming you don't use a stylus), the iPad is orders of magnitude easier to browse the web on. There is a similar effect (though obviously lesser) to interacting with web pages on a 5" screen vs a 4" one - much more so than the extra inch would suggest.
Of course, but if I want to do more than passing browsing then I would want to do it on a device other than my phone. My phone's net connection is for finding out quick info, like transport schedules or the current score in a sports match. It's not for doing extended browsing. Hence to me, a bigger screen is detrimental.
You'd want to do extended browsing on another device precisely because the iPhone is too small. Your mind is stuck in "faster horses" land and you can't imagine what use you could get out of a better phone :-)
Disagree completely. My mind isn't stuck in 'faster horses' land. I just live in a winding medieval city full of laneways too narrow for a car.
(That is to say, my use case is such that I want a small device, and that is more important to me than the ability to have a big screen - it'd be useless to me because I would not want to take it with me, destroying the 'mobile' in mobile phone.)
