Sealyu

Hopefully someone else will find these useful. Distilled from the Apple guide

• Icon.png – Home screen icon for iPhone 3 (57×57)
• Icon@2x.png – Home screen icon for iPhone 4 (114×114)
• Icon-72.png – Home screen icon for iPad (72×72)

• Icon-Small.png - Settings/Spotlight icon for iPhone 3 (29×29)
• Icon-Small@2x.png – Settings/Spotlight icon for iPhone 4 (58×58)
• Icon-Small-50.png – Spotlight icon for iPad (50×50)

• iTunesArtwork – Icon for iTunes AdHoc distribution (512×512)

Had a request to make the work flow a little easier heres those icons in descending size order

• iTunesArtwork – Icon for iTunes AdHoc distribution (512×512)
• Icon@2x.png – Home screen icon for iPhone 4 (114×114)
• Icon-72.png – Home screen icon for iPad (72×72)
• Icon-Small@2x.png – Settings/Spotlight icon for iPhone 4 (58×58)
• Icon.png – Home screen icon for iPhone 3 (57×57)
• Icon-Small-50.png – Spotlight icon for iPad (50×50)
• Icon-Small.png - Settings/Spotlight icon for iPhone 3 (29×29)