title: Make an application work on both iPhone and iPad
body: <p>I would like to make it so that my iPhone app also works on iPad.</p>
  
  <p>If I run it using the iPad simulator it does work, but the app doesn't show up on the iPad app store, and looks really weird.</p>
  
  <p>Is it possible to create another <code>.xib</code> file for the iPad? I know how to add a new iPad <code>.xib</code> file, yet I don't know how to actually change the <code>RootViewController.xib</code> to <code>RootViewController_iPad.xib</code> if the device being used is an iPad.</p>
  
  <p>I already have code for finding out if the device is an iPad, and I <em>don't</em> want to use <code>auto-layout</code>, because I would like to add different things to the view if they are using an iPad (such as using different images).</p>
  
  <p>I would like to make it so that my iOS applications look good on both iPhone and iPad, and have a separate <code>.xib</code> files for each. Is it possible to change the default <code>.xib</code> file from <code>RootViewController</code> to <code>RootViewController_iPad</code>?</p>