title: iPhone, can I create retina quality screen shots without an iPhone 4, e.g. simulator perhaps?
body: <p>I need to produce some quality screen shots of screens in my app.</p>
  
  <p>I'd like to use them as a backgrounds in some help screens.</p>
  
  <p>But I don't have an iPhone 4.</p>
  
  <p>How else can I create them ?</p>