Here is a list of design common elements such as iPhone GUI PSD, form elements, buttons, icons, browser templates, and windows that you will find yourself using the same graphical element over and over and should be a big help to you.
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The PSD is a well organized, labeled and layered PSD full of editable shape layers. Most people find it useful for mocking up apps. Others use it to concept ideas or create custom interface elements that work harmoniously with those native to iOS.
Flatastic Mobile UI Kit is a large user interface kit containing hundreds of mobile ui elements, which will help you design mobile user interface in Photoshop with ease. There are sets of icons, and actions have been included in the kit. The package includes more than 100 elements. It support both Standard and Retina Display.
Exclusive UI kit inspired by iOS 7 visual style. Get inspired and use the different elements included to create great looking apps.
Eager to start prototyping your next iOS 7 app? Wait no more! Today we would like to share a first version of our iOS 7 GUI PSD with all the designers and developers who are already working on iOS 7 like we are.
Palm Pre GUI PSD
Browser Form Elements PSD
FreshBooks iPhone Application GUI
The ultimate iPhone GUI PSD
960 Grid GUI PSD