freeload

I don't often write a post just to link to something cool I've found (maybe I should more often), but this is worth the trouble. If you have a cellphone that plays polyphonic ringtones and can connect to the web with a WAP browser, you can use Thomas Scott's Freeload to convert MIDI files and them download them for use with your phone. I must warn you: Freely trying new ringtones is addictive.