Step 3: when I try to add a file, my Cocoa Touch item doesn't have the UIViewController subclass template. In its place, it has something called the "Objective-C class extension". What gives? I can't do the rest of the chapter since it's based on having this feature. Any help is of course greatly appreciated.

It wasn't broken, so they fixed it. See here:

http://stackoverflow.com/questions/9...ry-for-xcode-4

Boy is my face red: this was a question for the "Beginning iOS 5 Application Development" book, not "Beginning iOS Game Development".

Apologies to all.