iPhone Developer Program - Standard Program Portal User Guide for OS X iPhone 2.0
Welcome to the iPhone Developer Program, your destination for all the resources you need to develop, test and distribute your OS X iPhone applications. The iPhone Dev Center and Program Portal are designed to walk you through each step necessary to get your application from code to customer.
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iPhone Development Guide - Development Environments: Xcode
To develop iPhone applications, you use Xcode, Apple’s first-class integrated development environment (IDE). Xcode provides all the tools you need to design your application’s user interface and write the code that brings it to life. As you develop your application, you run it on your computer, an iPhone, or an iPod touch.
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