Mapping Matter - Web Based creative tool for technical designers
MadMapper - The Mapping Software
TouchDesigner - TouchDesigner is a visual development platform that equips you with the tools you need to create stunning realtime projects and rich user experiences.
Resolume - Resolume is an application for live video performances.
Isadora by TroikaTronix - Isadora is the award winning, interactive media presentation tool that allows you to do just about anything you like.
QLab - QLab, Live show control for Mac OS X.