KSEG is a program for exploring Euclidean geometry, similar to Geometer's Sketchpad. It features points, lines, transformations, measurements, calculations, simple editable recursive Constructions (similar to macros), adaptively sampled loci, and selection groups. Several languages are supported. KSEG is very fast, stable, and has an efficient and consistent UI. It uses Qt and does not require KDE.
GTK2 Text Editor is a simple Unicode text editor that supports many encodings. It works as a nice Notepad replacement, and can also be used as an encoding converter. It supports multi-level undo, right to left text (as in Hebrew), and other Unicode features. It can auto-close an XML/HTML tag. There is no syntax highlighting yet.
SourceID Liberty is a Java implementation of the Liberty Alliance ID-FF 1.2 protocols. It has a workflow-based architecture that provides a great deal of flexibility and extensibility. A server-based application, it focuses on making it possible to seamlessly adapt the Liberty 1.2 federation protocols to existing infrastructure.
CAFE Linux (Class And Functionality Enumerator for Linux) is a CASE tool which aid the process of design and code generation using visual modeling. This tool helps you develop class diagrams using UML notations, and generates code accordingly. The main features of CAFE Linux are a class wizard, which accepts various information about a class and generates the class diagram, and a code generator, which generates the C++ code for the given class diagram such that all the established relations are satisfied. The currently supported relations are Aggregation, Association, and Generalization.
ZAP is a team-based Internet multiplayer game with 2D retro-style vector graphics. The control scheme is patterned after the arcade classic Robotron. It uses the Torque Network Library for its network transport layer. It supports multiple game types (Capture the Flag, Soccer, Football, Hunters, Rabbit, Zapmatch), configurable ship powers, and support for voice recording and gamepad controllers (not on all platforms).