Xmind - Xmind is a brainstorming and mind mapping application.

MatterControl - MatterControl is a free, open source app that lets you organize and manage your 3D prints.

MindManager - With MindManager, flexible mind maps promote freeform thinking and quick organization of ideas, so creativity and productivity can live in harmony.

Slic3r - STL-to-GCODE translator for RepRap printers Here comes Slic3r! Its features are: - speed

MindMeister - Create, share and collaboratively work on mind maps with MindMeister, the leading online mind mapping software. Includes apps for iPhone, iPad and Android.

Cura - Cura aims to be a end solution for personal 3D printing with RepRap based machines.