I haven’t posted too much here about iPhone development – normally I leave that on my iPhone development page, but I had to tell you about some of the fantastic resources available for developers on iTunes U.

If you are a complete neophyte, I recommend you check out: SEE (Stanford Engineering Everywhere). This has classes for the absolute beginner, including an introduction to Java, and C++.

If you are a little more advanced, then I suggest you check out: CS 193P (Intro to iPhone App Development.) Another Stanford course, this one is directly focussed on iPhone development.

Enjoy.

(Oh, and you can get the textbooks from Amazon, if you need, but they are not cheap!)