I'm learning basic Objective-C from "Becoming an Xcoder." I like the book, but I'm wondering: Is this ebook out of date for 3.1.2? It's starting to look like some of the code in this book doesn't work, and maybe it's because they wrote it for Xcode 2.x. Also, does anyone know any other forums for Xcode, Objective-C programming questions that has a really high traffic volume (for quick answers)? Thanks!