Palm Treo 650 (CDMA)
Voice Ringtones
It allows you to assign ringtones to anyone you want and lets you use any MP3 as a ringtone as well.
I have a problem where my phone occasionally resets when my wife calls, but I'm not sure if that's caused by RINGO or verizon.
http://www.toysoft.ca/lightwav.html »
It allows u to use mp3 plus qcp files from ur tones list.