Image Tricks Lite
- Freeware photo editing application that utilizes Mac OS X Core Image filters and Quartz Compositions to transform your favorite photos.
xMod
- xMod allows users to modify the Leopard operating system's hidden settings, through a simple interface, thus avoiding the command line.
X11
- The X.Org project provides an open source implementation of the X Window System.
VoiceOver Utility
- VoiceOver describes aloud what appears on your computer screen.
Terminal
- OS X is built on an industry-standard UNIX foundation.