Open Source Solid Modeling CAD
Program for molecular graphics
Earth orbits and satellite coverage display in 3D on your laptop.
Portable OS X FOSS applications
a free cross platform checksum utility, supports 58+ hash algorithms
Finite Element Method on 3D Meshes
Electronic design and programming tools suite like Eagle, MpLab
Multiplatform Ham Radio APRS and Mapping Program
Dicom PACS solution for free.
NGS compute distro proloaded with pipeline analysis software
Bond-graph based modelling tools
RFID data reader for Mac OSX
Ccide is a Decision Table preprocessor.