AMR Converter
Fast and easy to use batch AMR converter software supports two-way conversion among AMR and MP3, WAV, WMA, OGG, AAC, AC3, AIFF, AU, VOX, GSM, A-LAW, u-LAW, MP2, MPC, and many more audio formats.
http://www.mystikmedia.com/amr_converter.htm
Tamtamgames
Design and development studio. Go and download "midimelody", a Java application for your Nokia mobile phone that allows you to compose ringtones in the MIDI format, and send them to your friends.
http://www.tamtamgames.com