What are some reasons that application:didFinishLaunchingWithOptions method could get skipped?

Question

My iPad app was working fine until I opened up IB and started editing the interface. Now, my application:didFinishLaunchingWithOptions isn't getting called. I understand it's an optional function and it gets skipped if it doesn't exist, but in my case it does. What are some reasons that application:didFinishLaunchingWithOptions method could get skipped?

I should note that I'm building with the iPhone OS 3.2 SDK.

Thanks in advance for your help!

UPDATE: I fixed it, please see my answer below

Answer 1

Are you sure that class has been set as the application delegate of the app?

_{(source: xanga.com)}

And also make sure the "File's Owner"'s delegate has been linked to "App Delegate".

_{(source: xanga.com)}