Apple iOS Image Resource Sizes
------------------------------

Icons
	Settings               29x29
	Search                 50x50
	App iPhone             57x57
	App iPad               72x72

Launch Images
	iPhone                 320x460
	iPad Portrait          768x1004
	iPad Landscape         1024x748

Other Images
	iTunesArtwork          512x512

All sizes are in pixels (w/h, 72dpi). Recommended format is PNG.

Note that the iTunesArtwork file is expected to be supplied without
the '.png' file extension.