iPhone 5 set to have bigger screen?

Rumours are rife this morning that apples eagerly awaited iPhone 5 will have a much larger screen than previous devices. The now customary 'retina' display is said to be larger, with even higher screen resolution. Users will benefit from better screen quality and more real estate space for their apps. We wonder if app developers will be affected by the different screen size? All will be revealed when Pple release the product!!!