I personally had tremendous fun following Matthijs Hollemans' tutorials (http://www.raywenderlich.com/store/ios-apprentice http://www.raywenderlich.com/store/io

I personally had tremendous fun following Matthijs Hollemans' tutorials (http://www.raywenderlich.com/store/ios-apprentice http://www.raywenderlich.com/store/ios-apprentice). You can get the first tutorial for free if you sign up for the raywenderlich.com newsletter. It assumes no prior knowledge of iOS or Objective-C and runs you through building a simple game. Then for 54$ you can get the three other tutorials. The second tutorial shows you step by step how to build a checklist app (using Storyboards). The third tutorial is about doing a simpler version of Foursquare (using Core Location, Map Kit, the camera and photo library, Core Data and Core Animation). And in the fourth tutorial you'll learn how to make a clone of the default iTunes app by using the iTunes Store Search API (http://www.apple.com/itunes/affiliates/resources/documentation/itunes-store-web-service-search-api.html http://www.apple.com/itunes/affiliates/resources/documentati...) as well as AFNetworking.