id3tool is a command line utility for easy manipulation of the ID3 tags present in MPEG Layer 3 audio files.
id3tool is a fully GPL'd program. Warm-fuzzy's are 100% optional.
All releases will be announced via Freshmeat.
id3tool should work on all Un*x platforms. It also works on Win32/ix86.
There have also been reports of id3tool working on MacOS X.
Should you find a bug in id3tool (and there have been a couple already!), please report it to my email address, email@example.com.