The book offers the reader a jumpstart to developing applications for the fourth iteration of the iPhone OS -now called iOS 4. Fully updated to cover all the new features of iOS 4, this book covers both iPhone and iPad development. Readers will learn about the various core aspects of iPhone and iPad development. Combining the key topics covered in the Beginning iPad Application Development and Beginning iPhone SDK Programming with Objective-C books, this book is ideal for beginning iPhone and iPad developers. Part I: Getting Starte; Part II: Displaying and Persisting D; Part III: Advanced iOS 4 Programming Techniqus; Part IV: Network Programming Techniues; Part V: Appendices. Beginning iOS 4 Programming offers the reader a jumpstart to developing applications for the fourth iteration of the iPhone OS -now called iOS 4. Fully updated to cover all the new features of iOS 4, this book covers both iPhone and iPad development. Readers will learn about the various core aspects of iPhone and iPad development. Combining the key topics covered in the Beginning iPad Application Development and Beginning iPhone SDK Programming with Objective-C books, this book is ideal for beginning iPhone and iPad developers