Adobe will be open sourcing Flex under the Mozilla Public License (MPL). This includes the source to the ActionScript SDK components, the Java source code for the ActionScript and MXML compilers, the ActionScript debugger and the core SDK libraries.

ERP5 is a full featured high end Open Source / Libre Software solution published under GPL license and used for mission critial ERP / CRM / MRP / SCM / PDM applications by industrial organisations and government agencies.

It is distributed to linux community via packages for numerous distributions (Mandriva, Debian, Ubuntu,...) and a dedicated Live CD....

ODE is an open source, high performance library for simulating rigid body dynamics. It is fully featured, stable, mature and platform independent with an easy to use C/C++ API. It has advanced joint types and integrated collision detection with friction. ODE is useful for simulating vehicles, objects in virtual reality environments and virtual creatures. It is currently used in many computer games, 3D authoring tools and simulation tools....

Schema migration tools for SQLAlchemy, designed to support an agile approach to database design, and make it easier to keep development and production databases in sync, as schema changes are required.

PyOpenGL is the cross platform Python binding to OpenGL and related APIs. The binding is created using the SWIG wrapper generator, and is provided under an extremely liberal BSD-style Open-Source license.

PyOpenGL includes support for OpenGL v1.1, GLU, GLUT v3.7, GLE 3, WGL 4, and Togl (Tk OpenGL widget) 1.6. It also includes support for dozens of extensions (where supported in the underlying implementation)....

a Django-based platform for rapidly developing websites

Rust is a systems programming language that runs blazingly fast, prevents almost all crashes, and eliminates data races.

It provides both high-level features and low-level control: algebraic data types, pattern matching, closures, type inference, zero-cost abstractions, guaranteed memory safety, optional garbage collection, concurrency without data races, minimal runtime, efficient FFI....

Cheese is a GNOME application designed to take photos and videos of you and your friends with your webcam, add special effects to them and share them with your friends and family. It was written as part of Google's 2007 Summer of Code lead by daniel g. siegel and mentored by Raphaël Slinckx, and has most of the classical photo booth features after a bare couple of months of development. Under the hood, Cheese uses GStreamer to apply fancy effects to photos and videos....

Rakudo Perl is a Perl 6 compiler for the Parrot virtual machine.,

A generic tagging application for use in Django projects, which allows association of a number of tags with any Model instance and makes retrieval of tags simple.