Over a beer or two last night, my wife expressed an interest in learning how to write iPhone apps. Quite surprising really as she's never shown any inclination this way before, and is not technology literate. So, can anyone recommend any good books for the total beginner - someone who has never even seen basic before? Knowing her, and how she works, what I really need is something simple and light hearted which will allow her to get a basic iPhone app running quickly. She's not the kind of person who could wade through K&R and learn C first, she'll need to see something fairly rapidly to keep her interested enough to carry on learning. Something like a dummies book would be ideal, but I hear the Obj-C one is aimed at XCode 3.2, so she will be confused by using XCode 4. I would just start her on C# (its what I do for a living), but its the iPhone that has got her thinking, and I don't really want to splash out on MonoTouch in case she doesn't get in to it. So, any recommendations? Thanks in advance.