The how to doesn't make it clear that you have to add the "eagle" & the "giraffe" key to the Info.plist. So here's a short abstract of the whole thing:<p>- Install the newest Xcode 4.4.1 4F1003 (it didn't work with 4.4 for me)<p>- Put [0] in [1]<p>- Edit [2]. You might have to change the permissions of the file to edit it. You know you can do it!<p>- Add a "eagle" key with a string value of "640"<p>- Add a "giraffe" key with a string value of "1136"<p>- Start the simulator in iPhone retina mode.<p>Hope this helps a little<p>[0] - <a href="https://raw.github.com/gist/34797bfbde1563b039a5/282cb2e90656ea84099124956df1a4f3b7c805d0/File.txt" rel="nofollow">https://raw.github.com/gist/34797bfbde1563b039a5/282cb2e9065...</a><p>[1] - ~/Library/Application Support/iPhone Simulator<p>[2] - /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/Applications/iPhone Simulator.app/Contents/Resources/Devices/iPhone (Retina).deviceinfo/Info.plist