[bstahlhood]

Just a few off the top of my head, hope this helps:

- Explain the relationship between a UIView and a CALayer

- When it comes to animation, what are the differences between animatable properties on a UIView and a CALayer.

- How would you go about creating an UIImage and using Core Graphics primitives outside of a drawRect method.

- When initializing ivars in a UIViewController being used in a XIB or Storyboard, which method would you want to override?

- Walk through the flow of a UIVIewController. What methods get called and in which order?

- How would you check to see if an object implements a protocol?

- What is KVO? Give an example of how to use it.