Hi Gurus I have never designed for an app before, this is all very new to me. Iphone comes in three different specs being: Iphone 5 : Screen size 4 inches, Resolution 1136x640 Iphone4 : Screen size 3.5 inches, Resolution 960x640 Iphone 3: SS 3.5, Res 480x320 Can someone please advise me if I need to: 1. Create/Design different screens for different sizes ? 2. Do deverlopers create different versions of same app. for different sizes/Resolutions ? 3.Provide graphics at different resolutions to developer? I'm not designing for a game btw. Thanks for your time