Originally Posted by Firefly7475
I'd bet my house if the 4S was available with the current screen size as well as a 4" (almost) edge-to-edge version that the 4" version would sell better.
You are missing an accounting of some peripheral realities. First off, adding a 4" screen that goes "edge to edge" is easy to produce in Photoshop, but a little more difficult to engineer in the real world. Plus you have to develop the tools (or the skilled workforce) to produce such a device.
Then you have to consider how that feature will impact production. Will it be possible to find a reliable source of those screens? Will manufacturing issues derail production or hold back the volume of devices that can be produced, or change the speed at which production can be increased (if you've underestimated demand) or decreased (if you've overshot)? Or will you be stuck with nonstandard parts you can't sell (like HP)?
When you take your arm-chair punditry into the real world, you have to account for actual issues, which is why people doing the work at Apple make money while you earn nothing for contributing your uninformed opinions in comments on a review.
Sure, Apple may have attracted additional buyers with a bigger screen. But it also may not have attracted enough new buyers to make the change worth it, and may have actually alienated buyers who don't want a big screen. Those are variables you don't account for.
Does it make two iPhone 4S models, normal and bigger? That would result in doubling the inventory SKUs that Apple has to ship around and manage at every retail store and through every channel partner. Run out of big or end up with too many? Now you're losing money operationally on top of all the work you put into engineering a slightly bigger screen.
It would also tend to make production more expensive, forcing Apple to lose the profit margins that support the hiring of brilliant engineers and the production of world-class software. Sure, Android licensees crank out all manner of screen sizes, but a) they're not making much money, if any (Motorola LOST money last quarter) b) their software is problematic and poorly conceived (browse the web next to an iPhone and this gets pretty obvious quick; Android is not as optimized for any hardware, and hardware fragmentation only makes that problem increasingly difficult to solve c) these phones aren't even supported through their 2 year life span.
When you throw out remedies, filter them for reality to make sure what you are recommending is not worse than the status quo.