トップ
おなかすいた族!
http://developer.apple.com/jp/iphone/library/documentation/iPhone/Conceptual/iPhoneOSProgrammingGuide/Introduction/Introduction.html
http://developer.apple.com/jp/iphone/library/documentation/iPhone/Conceptual/iPhoneOSProgrammingGuide/iPhoneAppProgrammingGuide.pdf