I was browsing around on Google earlier looking for an easy way to make ringtones for the iphone and i come across a program (mac only) called ifuntastic which originally i thought it was just for ringtones but it does a lot more. This application lets you completely customize your iphone such as customizing the homescreen, adding sounds, add applications, add themes and ringtones. Obviously this requires a jailbroken iphone, one thing i must say was that this program is kinda hard to use with somethings even though my iphone is already jailbroken when i first attached it i had to install some features onto my iphone first which gave me the impression it was basically formatting and jailbreaking again but no everything was fine. You can download this for free but there are other versions that you can upgrade to but these do cost. I haven’t used this much but i will post more when i have got used to it, here is where you can download it from:

http://bitsplit-enterprises.com/iFuntastic/

Seeya.

Update: you do need to format your iphone to be able to use the features that this offers as i found out after working on my phone for a while.