Mods for iPhone

[Smoke19]

What kind of mods have you guys put onto your iPhones and do they work well? Does it mess up your iPhone in any way, shape or form? I would like to mod my iPhone but would like to know these 3 simple questions. Thank you.

 

[skinnylegs]

You can try this.....

http://www.hacktheiphone.com/iphone_changing_system_icons.html