title: iPhone Retina Graphics
body: <p>I have a question RE Retina display graphics (and potentially iPad 2 graphics if the rumours of double resolution displays are to be believed).</p>
  
  <p>Is there any advantage to having two graphics:
  Graphic.png 480x320
  and 
  Graphic@2.png 960x640</p>
  
  <p>and letting the iPhone use the @2 version for retina displays rather than just having Graphic.png at the higher res and letting iPhones with normal displays squash it?</p>