iPhone 4 GUI PSD (Retina Display)

iPhone 4 GUI PSD (Retina Display):

Not sure how I missed this news (dated August 12). This is the Retina Display-ready update to the original iPhone GUI PSD by Teehan+Lax.

The task was no small effort:

It wasn't a simple scale-up from the last file. It was clear as we created it that Apple has spent a lot of time considering how each element should be translated to such a dense resolution. What were single pixel elements are now two or three pixels thick and effects are exaggerated to become...