I really like the polyphonic midi-style ringtones the Treo 300 supports. However, I can't find any software out there (MonkeyTone, iRing, Ringo) which supports it! They all just give me monophonic single-instrument (BEEP) melodies and controls.

Does anyone know if any of these programs will, in the future, support the Treo 300's ringtones? Does anyone know of any way to create them right now (using some other software, or a pc midi program and some sort of conversion tool, perhaps)? I suppose I'm a bit impatient, but I want to start playing with some better ringtones.