A KDE ioslave for the Creative Nomad JukeBox MP3 player. The NJB appears as a filesystem from within Konqueror allowing mp3s to be copied to and from the NJB as usual. Playlists appear as text files and can be edited.
The Rockbox project produces an open source firmware replacement for portable Digital Music Players, currently supporting Archos, iriver and iPod models with more platforms being worked on.