Simply the best iPhone 4 GUI PSD template out there at the moment.

I researched more than a dozen iPhone UI templates and resources a year back and Teehan+Lax’s template stood out back then.

Their updated iPhone 4 GUI PSD template is awesome, if you’re an iPhone GUI designer this is a must have resource – ready to go iPhone template, a comprehensive list of interface components and high quality artwork.

It’s provided free of charge, but given the great work and generosity you can’t help but reciprocate and donate as asked.

http://www.teehanlax.com/blog/2010/08/12/iphone-4-gui-psd-retina-display/