Developers -- are you in need of a really high resolution mockup of the iPhone 4/4S Retina display GUI elements to help the design of your app? Geoff Teehan and his team created a Photoshop file (.PSD) to help you mock up those apps.
According to Teehan, "The file is huge, both in file size (62.7MB) and dimension (4074 x 2986). You'll need to work at 25% - 50% even on the largest screens to roughly grab elements before zooming into 10
