With the iPhone 4, Apple introduced the amazing Retina Display which gives us 4 times more pixels on the same screen size. Many app developers have already optimized their applications, including the icon, for the Retina Display, but there are still a few devs that are late to the game.
We already saw how to convert old app icons to Retina Display icons, but the process wasn't very straightforward. There is now an easier way to do all that thanks to a new jailbreak app...