A ringtone or ring tone is the sound made by a telephone to indicate an incoming call or text message. Not literally a tone, the term is most often used today to refer to customizable sounds used on mobile phones.
FoneLink app
Yesterday, I was desperate of syncing my Sony Ericsson phone with Mac... Finally I found this amazing powerful app... (and change application icon to iPhone :)
It has many features such as mobile finder, ringtone maker, timetunnel(!) ~ something like time machine for mobile, and many more...