Windows mobile looks good on a 5" screen at 800 x 480. So I don't think you need to go to 1200 x 800 too look good on a 4" screen. However, you all seem the experts so I will leave it at that.
Originally Posted by DaveF /t/319622/if-the-rumors-are-true-iphone-5-looks-like-a-dud/30#post_3915577
Bigger pixels is a bad solution. Apple won't do it (my prediction).
The article is reasonable. But my opinion is that if Apple releases a larger phone it will be a 4.375" screen with 1200 x 800. Same pixel pitch, same screen aspect ratio, but 25% larger on each side.