Inq is a scripting language for client/server systems. The server provides transaction, persistence, concurrency, and events support. The client is presently desktop only, though Web clients are planned. Inq uses a generic node structure throughout and reification techniques to obviate boilerplate code, especially in the areas of persistence and MVC.
XEO (eXtensible Enterprise Objects) is an agile development framework designed for creating Web applications built around Object Oriented concepts and Model Driven Development with Java. You model business entities (including their attributes and behavior) as XEO Models which are then processed by the framework's "Builder". This produces the application's supporting structures such as database tables (to persist data) and Java classes (providing object-relational mapping and behavior). Development is supported by an Eclipse plugin called XEOStudio.
uNabto is a small UDP-based NAT and firewall traversing virtual Web server. It is useful for very small resource limited embedded systems. It works by installing a free Nabto protocol plugin in your browser which, in combination with a "HTML-device driver" definition file, communicates and presents the user with a nice Web based GUI.
Boscli is a framework to create interactive command line interfaces. It is meant to help developers write interactive shells for domain specific tasks. It provides an easy way to wrap and join together command line apps and utilities and create specific shells with security levels and modes, history, auto-completion, and so on. Using this framework any developer can build an interactive command line interface for configuration or monitor an appliance in a few minutes. Boscli can be used as a "glue code" for an appliance's interface or to create a "homogeneous" administration interface for different systems and applications.
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).
ShortPHP was designed to be the shortest, smallest, quickest Web framework possible. The code is currently less than 4KB in size and is just under 100 lines. In some ways, you could say that it follows the MVC (Model-View-Controller) paradigm, but since it has no database-related code (it is completely file-based) it's more of a VC (View-Controller) system. It's up to the developer to use whatever tools are deemed fit. ShortPHP is fully E_STRICT compliant.