I've been using the skins found in these 2 threads. Basically they just replace all of the png files that go into the dialer. Some cab files were made...maybe this could get your started.
http://forum.xda-developers.com/showthread.php?t=321060
http://forum.xda-developers.com/showthread.php?t=315685
I definitely would love an authentic looking (and working) iphone dialer skin to go with your theme on my Touch
