NOTE: Source code is now hosted on github at https://github.com/plutinosoft/Platinum. A cross-platform C++ library for discovering, controlling or implementing UPnP devices. Contains sample code for a UPnP AV Media Server, Media Renderer & Control Point. (Platinum is copyrighted by Plutinosoft, LLC. http://www.plutinosoft.com)
Geodes is a mac application designed to do geometry and math like you can do in front of a sheet of paper. It both includes simple figures drawing (lines, circles) and high level analytic geometry.
The Semantic Time Framework is a multimedia "meta-framework" that provides more high-level abstractions of time. STF enables developers to more quickly and easily develop interactive applications with time-based media.
The Mac OS X Port of analog which has been specially rewritten into ObjC code to take advantage of Cocoa. The rewrite will also incorporate new features not found in the console version. Includes a graphical interface, support for XML property lists. .