title: What is the best cocoa book for desktop mac development?
body: <p>I'm learning iphone dev, and also want a solid handle at desktop development for the mac.</p>
  
  <p>What do you guys recommend?</p>
  
  <p>Language wise, is objective-c all I need? </p>
  
  <p>Is desktop development locked down at all, or are you free to do anything once it is installed?</p>
  
  <p>Does each app run in its own space as to not effect other desktop apps?</p>