libTISCH is a framework for easy development of multi-touch applications. It contains tools for video processing, calibration, gesture recognition and, most importantly, a GUI toolkit with widgets that utilize the multi-touch gestures detected by the lower layers. It runs on Linux, Mac OS X, and Windows.
The Asbru Website Manager is a ready-to-use cross-browser/cross-platform tool that enables non-technical users to edit, add, and delete HTML pages, images, and other files on their Web server through a Web browser. Users can browse their way to the Web pages they want to change and edit directly in a WYSIWYG HTML editor with a familiar word processor like user interface.
The OpenInput library is intended as a free (libre), easy-to-use, cross-platform input handler library. The goal is to provide an SDL-like interface to input devices such as keyboards, mice, and joysticks while keeping the dependencies for the library at a bare minimum and making it simple to integrate in existing projects. All functions and data structures are intuitive and fully documented. The library has support for both event-based input handling and unbuffered input.
Maven Integration for Eclipse makes it easy to use Maven in Eclipse. Features include: a form-based and XML editor for the Maven POM; a quick search in remote Maven repositories and integration with Nexus Maven repository manager; Maven-based dependency management and automatic downloading of required dependencies and sources; launching Maven from within Eclipse; creating new projects using Maven Archetypes; materializing projects using Maven metadata; integration with JDT, AJDT, and WTP; integration with Maven SCM, Subclipse, Subversive, and Team/CVS; and extension points and API for 3rd party integration.
REALbasic is a cross-platform software development environment for developers who want to create and deliver native applications for Mac OS, Windows, and Linux. For example, you can create an application for Mac OS and Linux from a Windows machine. It is intended for people with all levels of programming experience. It is object-oriented, powerful, and supports advanced programming concepts like inheritance, polymorphism, interfaces, delegates, introspection, etc.