Free flexible open source todo manager featuring hierarchical tasks
Task Coach - Your friendly task manager. Task Coach is a free open source todo manager. It grew out of frustration about other programs not handling composite tasks well. In addition to flexible composite tasks, Task Coach has grown to include prerequisites, prioritizing, effort tracking, category tags, budgets, notes, and many other features. However, users are not forced to use all these features; Task Coach can be as simple or complex as you need it to be. Task Coach is available for Windows, Mac OS X, and GNU/Linux; and there is a companion iOS app.
The AbiWord word processor is a full-featured cross-platform word processor.
BDK: XBERRY DEVELOPMENT KIT CONICSOFT(NINGBO) CO,.LTD. This project moved to FreeBDK.sf.net
Exegraph is a visual, object-oriented, dataflow-driven programming language environment for the Windows and Macintosh platforms.
Fraktron is a set of specifications, libraries and applications to facilitate historically correct typesetting of German and other languages in blackletter script using a variety of font formats, encodings, modes and features.
Pysox is an open-source library for the development of isometric, 3D games (RTS and TBS chiefly). It will be scriptable in either Python or Lua. It is written in Objective-C using GNUstep, OpenGL, and SDL.