title: Why [UIScreen mainScreen].bounds] is not returning full screen size?
body: <p>I have an app that was created prior to the new iPhone 5 retina widescreen device.
  Now i am trying to support this high definition widescreen.</p>
  
  <p>I adjust the main ViewController and the main window XIB files so that they are set to Autolayout. I can verify that the width/height displayed via the IB shows 320 x 568.</p>
  
  <p>However, when I run in simulator, i can see that the height is still 480.
  The code im using to print the height (and width) is in the main view controller's viewWillAppear method:</p>
  
  <pre><code>[UIScreen mainScreen].bounds]
  </code></pre>
  
  <p>Why is the size.height still 480 instead of 568?</p>