Threads like this are silly because they're so short sighted.
As Cellphones evolved then they shrank.
We weren't losing features, we were losing bulk. And, for the most part, then every "cellphone" was a phone and nothing else.
But then as phones started developing more features then they grew again. But this time they weren't adding useless bulk, they were adding new tech to introduce new features. Phones getting bigger was necessary.
The reason big phones is a joke ISN'T because they're getting "too big". Its because Apple lagged behind so much longer than they should have that myths about "one handed use can't be done on a screen bigger than 4in" ended up being quoted as fact.
4.7" and 5.5" isn't really "too big", theyre just bigger than we're used to. But give it a year and we'll all be looking at the 4S/5S and wondering how we got so many years of work done on such "small" screens.