The #1 book on iPhone application development for experienced programmers, now completely updated for the newest iPhone SDK--Introduces developers to the latest features in the iPhone 3.0 SDK, including Core Data, GameKit, and Push Notifications.-Expanded to include beginner material, such as an introduction to Xcode, Interface Builder, and Objective-C-Written by the well-known iPhone programming guru Erica Sadun. More than 1 billion iPhone apps have been downloaded from the App Store Last year, The iPhone Developer's Cookbook introduced 'practical programming' to the iPhone development community. It presented a range of ready-made solutions (i.e., the things you need to use all the time to develop iPhone and iPod touch applications), but wouldn't want to have to develop from scratch. It helped new iPhone developers get up to speed by offering ready-to-use solutions rather than just a general discussion of the material. It provided a valuable reference for already-busy experienced developers, who could cut and paste the items they needed and then adapt them into their code. This year, Apple announced the iPhone 3.0 SDK, which gives developers more power for their apps. Updating The iPhone Developer's Cookbook to cover the iPhone 3.0 SDK allows its material to maintain a competitive share of the how to market in its arena. The book will be updated to expand its coverage both to include new 3.0-specific technologies such as GameKit and Push Notifications, as well as to create a richer collection of tools in its non-3.0 material, including greatly increased coverage of information for the beginning iPhone developer.