Erica Sadun has updated SendSong to work with 1.1.1 and it also allows you to set your songs as ringtones. She states that it’s still pretty “flakey,” You have to option to send a song through email and automatically make it a ringtone. It’s a neat little feature but the downside is that you only get to listen to the first part of the song for the ringtone. I hope there will be a native iPhone app that lets you select a section of the song to set as your ringtone. You can get SendSong from installer!