Apple Development Program
Mac Dev Center: User Defaults Programming Topics for Cocoa: Usin
iOS Human Interface Guidelines: Custom Icon and Image Creation Guidelines
Update: 01/10/2012 : The original version of this article by Jen Gordon was published in August 2009. It was thoroughly revised and updated by the author in September 2012. — Editorial Team Since the iTunes App Store launched in 2008, over 500,000 apps have been approved by Apple, and thousands more app ideas are scrawled on napkins across the world every day. But question remains, how can a person with limited technical skills create an iPhone app?