TouchOSC - Modular OSC and MIDI control surface for iPhone / iPod Touch / iPad / Android
MadMapper - The Mapping Software
Open Stage Control - Libre and modular OSC / MIDI controller
Resolume - Resolume is an application for live video performances.
LIVKONTROL - LK is a touchscreen Ableton Live and MIDI controller app for iOS and Android tablet and mobile devices.
Linux Show Player - Sound player designed for stage productions