For iPhone and iPod development, stackoverflow is a very good place to go for asking questions, you can also buy a couple of books about iPhone and iPod development, but then again these resources will teach you the steps but you will need to really focus and keep on building and correcting your apps if you want to get further. A very quick way to get you up and running with iPhone and iPod development (Objective C) is http://cocoadevcentral.com/d/learn_objectivec/.