My iPhone app icon shows up fine in iPhone/Retina and iPad. But on iPad retina (simulator and device) I get an icon that apparently contains the app\'s start screen:
I've just had this problem with an app too, and when I went to edit the Info.plist file found that Default@2x.png was in the icon list - no idea how it got there, but this project has been going on a while so could be a result of one too many XCode upgrades.
Removing it from the entries in the plist has fixed the problem on the retina iPad too. Am still going to add the extra iPad icons in just in case, but if others are having the problem it is worth checking what XCode has put in those entries.