libposix is an impementation of the core functionality of all Unix systems. It is a full, cross-platform implementation of the POSIX 2008 standard. It is meant to replace existing implementations of a Unix system's core libraries. It is an exact implementation of POSIX 2008 and nothing else (no extensions, no previous POSIX versions). However, it works well with possible extensions to the core system functionallity (for example, GNU or BSD).
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.
Artisan System is a PHP framework aimed at build Web sites and e-commerce Web software very quickly and efficiently. It supports most of the features expected in a PHP framework, along with a feature-set with e-commerce classes. The e-commerce classes will support credit card processing, other payment methods, shipping calculators and estimators, product management, customer processing, and order creation and management. Artisan System has a very fast but structured development roadmap.
The Corosync Cluster Engine provides a cluster plug-in engine for third party cluster service developers. Designers develop service engines for use with Corosync that can take advantage of its features including messaging, membership, IPC, a configuration object database, a handle database, automatic replication, and more.
The BitNami DjangoStack is an all-in-one installer that greatly simplifies the installation of Django and its runtime dependencies. It includes ready-to-run versions of Python, Django, MySQL, and Apache. It supports Linux, Windows, and OS X, so you can share the same Django environment on multiple platforms.