CroosUI RAD Desktop is a rapid application development tool that makes it possible for developers to quickly develop and package exactly same code and UI into Web apps, native desktop apps for Windows, Mac OS X, Linux, and UNIX on 32-bit and 64-bit architectures, and mobile apps for iPhone, iPad, Windows Phone, webOS, BlackBerry, and Android devices.
Simple Workflow is a workflow engine. It is simple to use (you need to call only two methods and implement one interface), written in Java 7, uses a simple domain language to describe workflows, can be used with any storage backend (SQL, NoSQL, file, etc.), can be used with any frontend, and has a high level of backend/frontend abstraction.
Wenity is a multi-platform Zenity clone that helps (shell) script writers to interact with their users through various types of GUI dialogs. Scripts call Wenity and receive the user's selection in the exit code/response file. It supports any operating system with Java and a GUI installed, supports complex return types by using response files, and has a modular architecture supporting different functions: simple dialogs (user input, information, question, error/warning), progress indicator dialogs, system tray notifications, file choosers, and file viewers (text and HTML).
Pies is a Python 2 and Python 3 compatibility layer with the philosophy that all code should be Python 3 code. Starting from this viewpoint means that when running on Python 3, Pies adds virtually no overhead. Instead of providing a bunch of custom methods (leading to Python code which looks out of place on any version), Pies aims to backport as many of the Python 3 API calls, imports, and objects to Python 2 as possible, relying on special syntax only when absolutely necessary.