iOS Icons 2011.1
collection will help each iPhone and iPad application developer get his GUI in order. The icons from this library can be used in navigation, tab bars and toolbars, as they specifically meet the icon guidelines for iOS applications. Technically, there are 1256 unique app icons created in matching style in PNG and PSD formats with black and white versions, in sizes 20x20, 30x30, 40x40, and 60x60 pixels.
iOS Icons 2011.1 Website - iOS Icons 2011.1