Originally Posted by Rambo
The problem is 4.6 inches is too large a screen for Apple to keep the iPhone 4/4S' resolution and still be considered a Retina Display. There is no chance in Hell of Apple releasing an iPhone that doesn't use one, so to do so they would have to increase the resolution. This would cause fragmentation for the platform. Something that Android been riddled with and Apple has been careful to limit and avoid. I don't buy it.
I don't have the link, but someone did the math a while back and 3.6 to 3.7 inches is the largest Apple could go with their current resolution and still be able to market the screen as a Retina Display. This is far more likely is Apple does decide to go larger.
Besides, 4.6 is too big. I wouldn't want to see the iPhone grow any larger then 4 inches if they did decide to go down this path.