smooth is an object oriented class library for Win32 and Linux written in C++. It's meant to become an alternative to toolkits like Qt.
ferite is a modern, lighweight, portable, threadsafe scripting engine with a language that is very easy to pick up and leverage for any task. It\'s been designed for rapid deployment in other programs as well as stand alone use.
A fast, unobtrusive and modern cross-platform GUI toolkit. Agar fully exploits hardware acceleration where available, but also supports simple frame-buffer interfaces. Agar is stand-alone and easily portable to new platforms and graphics systems.
PortabilityKit is a GNUstep framework (library) which aims to alleviate portability issues between Cocoa and GNUstep as much as possible by implementing Classes and methods which are Apple-introduced, and not part of the official OpenStep Specification,
The Coconut Library is an Objective-C class library for PC-UNIX systems and MacOS X. This library is designed to develop software which works unix systems and MacOS X. And depends on Cocoa library for MacOS or Cacao library for unix systems.
StarPeak ToolKit provides an API for document and GUI based applications.
Thirty-One is a fun little game, where the user plays against the computer in a race to the number 31 (thirty one). Each selects a number until the aggregate equals 31. To also be extended to player versus player. Also, will hopefully gain a GUI.