MadMapper - The Mapping Software
vMix - The vMix Software Video Mixer and Switcher is the complete live video production software solution.
Resolume - Resolume is an application for live video performances.
DVSwitch - DVswitch is a digital video mixer intended for interactive live mixing of several incoming DV video...
Linux Show Player - Sound player designed for stage productions
mimoLive - Imagine if you had a full blown TV studio at your disposal.