IPhone GUI PSD(teehanlax.com)
teehanlax.com
IPhone GUI PSD
http://www.teehanlax.com/blog/?p=447
1 comments
It seems like most of what you'd do with this would be easier to do in Interface Builder. It even has nice little guides to snap things to where the HIG says they should go.
I think the advantage comes from allowing multiple people to play with the files and end up with an image you can quickly email to a client or insert into a document. Plus you don't have to own a Mac to work on interface design.