One of the challenges facing developers isn't always writing clean code. A small development team also has to contend with images and icons, which are often the first things a user sees when he stumbles upon your app and takes it on its maiden run.
One app that promises to make artwork and icon preparation easy is Prepo from Mothership. Now in version 2.0, Prepo allows you to put the finishing touches on your iconography and Retina artwork before you submit your app for review. Once you import your image files, Prepo will size the icons for an iPad, iPhone or a universal app. On the artwork side of things, Prepo takes your @2x artwork and reduces it to @1x. It also resizes it and renames it if necessary.