Xilisoft iPhone Ringtone Maker helps you make iPhone ringtone by converting videos/audios to M4R ringtone for iPhone, and transfer the ringtone to iPhone directly after conversion if you want. And it fully supports iPhone 3GS (iPhone OS 3.0).
This ringtone creator allows you create nice ringtones directly from your music audio files for any phone models. You may convert any part or full song to ringtone. Visual editor, ID3 tags editor, Effects (Normalize, Fade in, fade out) and more
Ringtone creator ImTOO iPhone Ringtone Maker lets you custom your own iPhone ringtone by converting almost all videos/audios and even music bought from iTunes store to M4R ringtone format for iPhone, and upload the ringtone to iPhone directly.