[ja27]

Find one of Rey Wenderlich's tutorials that matches something you're interested in and follow it. I don't think I would have gotten my first app done if it weren't for his site. They're just the right depth for getting something working. http://www.raywenderlich.com/

There are a ton of samples and open-source mobile apps. It's a whole lot easier to pick one of those up and start messing with it than it is to start from a blank slate app template.

It took me almost 6 months to submit my first iOS app and I'd done plenty of C/C++ and client-side UI work. It takes time to get moving and iOS can be frustrating as hell between the odd syntax of Objective-C and UIKit. Android is an easier transition for most developers.