If you are an experienced programmer, I would recommend just diving in and building something. You will get a lot of hands on experience dealing with the platf

If you are an experienced programmer, I would recommend just diving in and building something. You will get a lot of hands on experience dealing with the platform, and at the end of the process, you will have what should be a shippable app that you can point to as a sign of your competence as an iOS developer. This is what I have always done when wanting to learn a new language/framework/etc and it has worked well for me thus far.