I agree 100%. I have large hands and the 3.5" screen just doesn't cut it anymore. It drives me nuts that the general thinking seems to be "Apple has thought this out, and they know best." This statement always seems to imply that anyone who wants a bigger screen is wrong, which Apple can never be. Perhaps they don't have enough large handed individuals in their company (take that for just what it says, I'm not implying anything, there is no intended double meaning). I had a Droid X for a little while, and that screen size was perfect. The phone was terrible, but the screen size was just right for me. I've heard many people make the argument (and I think it's true) that very little iPhone usage is actually as a phone anymore. That eliminates the argument that, "People look ridiculous with those huge things held up to their face." Who cares? I wish the iPad had phone capabilities so I could just carry one iOS device around. And yes, I'm dead serious. I've got headphones I can use for calls, and it would eliminate the issues I have with small screen size. 3.5" might be the "right size" for most people, but there is a large contingent out there that could use something larger. Ultimately, it's not a deal breaker for me. I have no interest in going back to Android or moving to Blackberry, but I'd at least like to see Apple consider a change in this one area.
Just out of curiosity, how does one not get good battery life? I'd seriously like to know how much one would have to use their phone to experience bad battery life. And what is bad battery life for an iPhone 4S? Everyone I know has Android phones, and their phones are dead by mid-afternoon, and again by the end of a night. If it's a weekend, and we're going out for an evening, they'd have to charge it again before we leave. I can easily get two days on my iPhone.