In this clear and concise book, veteran hacker Jonathan Zdziarski - one of the original hackers iPhone - explains the iPhone native environment and how you can build software for this device using its Objective-C, C and C + + development framework. iPhone Open Application Development walks you through the iPhone's native development environment, offers an overview of the C-purpose language that you will use with it, and supplies background for the iPhone operating system. You also get detailed recipes and working examples for everyone's favorite iPhone features - graphics and audio programming, interfaces for adding multitouch functionality to games, use of hardware sensors, and extensive user interface tool kit. This book explains: How to access the underlying operating system of application composition iPhone iPhone How to get a chain of open source tool that runs on your desktop core iPhone User interface framework, which is tied to the application functions Using primary-level much touted iPhone features such as multitouch, hardware sensors , and intercept the movement and handling event notifications for many iPhone-related events Raw video surfaces and 3D transformations that take you deeper into advanced graphics on the iPhone How to record and play simple sounds and intercept sound events Advanced digital audio output using Apple's new Audio Toolbox framework interface components Advanced users such as parts lists, keyboards, and image manipulation Appendix includes a summary of sample code for applications other cool features, like using a camera and create a browser like CoverFlow album. This book is the book a true hacker, which is designed for millions of users who have run third party applications on their iPhones, but the concepts and examples of code that has been proven to be very similar to Apple's official SDK, making this book a valuable resource for both camps.