“Thanks to some tweaks to the iOS Simulator application that is included in the iOS development tools, we were able to run the simulator at the rumored next-generation iPhone display resolution of 640 x 1136. We did this running both the current public release of iOS 5.1 and the upcoming iOS 6.0. The iOS 5.1 simulator displayed the home screen with a stretched set of four rows of icons. On the other hand, iOS 6 displayed five complete rows — as our sources said Apple was testing for taller iPhone displays.
This proves that the upcoming release of iOS 6, which will obviously come pre-loaded on the new iPhone, is well-aware of taller iPhone displays. It scales perfectly to the taller resolution.”