title: Is the iPhone 4+ displaying images 2x the size if your site doesn't have retina support?
body: <p>I just started reading about Retina Display on the iphone 4+ and I would like to know if right now all these iphones4+ are displaying images 2x the normal size on web pages if you don't have a the imagefilename@2x.extension ?! </p>
  
  <p>This would be a huge headache if I have to wrote all that extra code like media queries and add @2x after every background images... </p>
  
  <p>If so, what are your swiftest solution? 
  Thank you. </p>