i don't know how many of you have ipods or iphones but here is what i have been doing with mine.Bootscreen
When you power on the device it shows an apple icon. i replaced that with my own personal logo.Lock Screen
removed the top frame of the slide to unlock, and the bottom orb in the yellow circle is now the slide to unlock.Home Screen
(actually called a spring board) replaced all application icons files and hid the rest of my applications and default applications in the system folder.
i am going for a tech feeling. i will be redoing all of the images files in my ipod. so any suggestions on the dock icons or styles or reference ideas would be graetly appreciated.