Eloquent is a powerful Bible study tool for Mac OS X, supporting features such as services, to access the Bible in any program. It uses the Sword Library to work with bible texts, commentaries, dictionaries.
OS X port of the Svlis the GPL Set-theoretic Kernel Geometric Modeler (Kernel) produced by the University of Bath, UK. The source code was released on the 21nd of September 2001 under the GPL by bath Uni.
Firefly is a simple, relaxing program that animates three dimensional surfaces as they grow and morph between one another. The program is implemented with AppKit and OpenGL in Objective-C for Mac OS X.