IOS 4 IN ACTION

Jocelyn Harrington is a mobile developer and speaker. As an Apple Certified iPhone Developer, she has already authored or co-authored 16 apps in the AppStore. Jocelyn is a full time developer for an in-app integration SDK on iPhone OS platform.Brandon Trebitowski is a software developer and author. In August of 2008, he started iCodeBlog.com to teach aspiring developers how to write software for the iPhone. After the blog was acquired by RightSprite in December of 2008, he began working full time for them developing mobile software. He also co-authored the previous edition, "iPhone and iPad in Action."Christopher Allen hosts iphonewebdev.com, the largest iPhone web dev community, and is a founder and organizer of the iPhoneDevCamp conference. A longtime technologist, Chris was one of the authors of TLS, the next-generation SSL protocol. He also co-authored the previous edition, "iPhone and iPad in Action."Shannon Appelcline is a widely published writer and technologist, who has written everything from game programming articles to comic books. He also co-authored the previous edition, "iPhone and iPad in Action."