iPhone development: first steps

Now that Apple has effectively lifted the NDA (seems like this would officially happen next week, but everyone seems to be acting as though it's gone now), it's time to begin my explorations into software development for the iPhone.

Some links I've started accumulating:

• ars technica: A touch of Cocoa: inside the iPhone SDK
• The Pragmatic Bookshelf: iPhone SDK Development
• iPhone Development Central
• O'Reilly's Inside iPhone Blog
• MacRumors iPhone Programming Forum
• iPhoneMinds
  

I have some ideas about developing a utility to assist with my volunteer work at the local library, and I'd certainly like to see some tools to interface with Request Tracker and Nagios.

First, though, there's this brand new programming language to learn...