DevRocket is an iOS development panel plug-in that provides Adobe Photoshop with additional iOS specific tools and functionalities that are designed to assist key areas in iOS app design for all iPhone models including the iPhone 5 and all iPad models. A simplified solution to working between display resolutions, breaking down full ui designs into separate elements ready for Xcode and saving for the Retina display are just a few of the awesome features DevRocket brings to iOS designers currently using Photoshop.
via Dev Rocket – Photoshop panel plugin for iOS developers.
Caveat: I haven’t used this and I’m not a designer, but it seems like a good tool and a good price. If you have used it, let me know what you think.