title: Dealing with different size images in a xib for iPhone5 versus iPhone4?
body: <p>The previous posting on here about migrating to iPhone 5 only mention adding a new sized launch image*
  and maybe using AutoLayout if need be.</p>
  
  <p>But I have a few xibs where there is a background image which fills up the whole of the screen (maybe minue the navigation and tab bar, depending upon the view). To support iPhone 5 I will now need different images for the different screen size, how is this dealt with in the xib or elsewhere?</p>
  
  <p>(*incidentally what do you do if the app doesn't use a launch image?)</p>