GTK+ comic book viewer.
Read, write and edit metadata
Prepress image viewer and converter
Internet radio directory browser
Aramacao is a lip syncing application for Linux
Cross Platform GUI Toolkit
Program for manipulating with mind maps
MP4Tools is a collection of free tools to manipulate MP4 files
The best collection of tools for MLB.com content and MLB.TV for Linux.
A full featured cross-platform image library
Image viewer and organizer
nomacs is a fast and small image viewer
utility to split mp3, ogg vorbis and FLAC files without decoding
ncurses based mpd client with vi like key bindings
See mlbviewer project for MiLB.tv support
Very Powerfull Crossplatform Qt Based Music Note Editor[Still Planing]