title: iOS apps - why include both @2x and low-res images?
body: <p>This has been bugging me for a while. I don't understand why one should include low-res images. If a 3GS, for example, can't find the low-res image, it just uses the @2x version anyway and displays it at it's native resolution. So why add to the filesize of your app by including all the half-res images?</p>