Pre-Production
Software
Celtx - Media Pre-Production Software (Free)
Open Office - Productivity Office Suite that accepts common document files from programs such as Microsoft Office (Free)
Apps
Production
Software
Apps
Android
DubScript - Script Manager for Android Phones that accepts Celtx script files (Free)
iOS
Post-Production
Software
Lightworks - Open Source Editing Program (Free)
Gimp - Open Source Image Editing Program (Free)
Blender - Open Source 3D content creation suite (Free)
Go Pro Cineform Studio
Jing
Plug-ins
Apps