I’d like to extract the default UIBarButtonItem icons from the iPhone SDK. I imagine they’re probably stored in the iPhoneSimulator platform as alpha-channel-only PNGs, but I’ve yet to find it.
The one I’m looking for is UIBarButtonSystemItemReply. (For those suspicious that there’s even a valid use case for this, I’m looking to use this on a table row header where the user can post replies, row-wise)
The Other.artwork file is in /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator3.0.sdk/System/Library/Frameworks/UIKit.framework/ (you need the SDK).
Use the “iPhoneShop-1.3.jar” program — available currently here to extract all of the images into a directory.