For several months it has been rumored that iPhone 5 would have a 4-inch screen and a resolution of 1136 x 640 pixels. Making a comparison with the 960 x 640 resolution of the iPhone 4/4S, you notice that the change would be significant and the images above demonstrate how they will affect the running of applications on iDevices. It was said that the applications will not be displayed well on the screens of the iDevices and that the developers will have a hard time updating them, but a study done at WWDC 2012 proves that the developers are not really that worried about the change and that updating the applications for the new resolution will not prove to be that difficult.
Given the relative ease expected by developers for utilizing potential new iOS screen sizes, we believe the introduction of new screen sizes would not affect the success or availability of the apps on iOS.
It would be normal for Apple to implement a system that scales the graphics of the applications so that they work without problems on the new screens, as happened in the case of the iPhone 4 and its Retina Display. Developers rely on Apple's ability to simplify things, and such a system would give developers the necessary time to update their applications after the release of the iPhone 5, so that users are not affected. They are not too worried about this idea now, but it remains to be seen what their opinion will be in the fall.
