First of all, start reading here: http://developer.apple.com/library/ios/#documentation/userexperience/conceptual/mobilehig/Introduction/Introduction.html http:

First of all, start reading here: http://developer.apple.com/library/ios/#documentation/userexperience/conceptual/mobilehig/Introduction/Introduction.html http://developer.apple.com/library/ios/#documentation/userex... (It's important to have at least a basic understanding of the platform's UX guidelines, even if you leave the detailed work for someone else.)