vov (Vov's Obsessive Von-neumann) is a tool that emulates the behavior of a von Neumann machine. It is basically an interpreter that reads files in the form of memory assignments and executes the encoded instructions. The vov's instructions allow you to perform simple arithmetic data manipulation. It is a very useful tool to see if your programs work and how. You can run a vov program from a file as you would any other shell, Perl, Python, or Ruby program.
OpenAL Soft is a cross-platform implementation of the OpenAL 3D audio API. It's based on the open-sourced Windows version from openal.org. It provides capabilities for playing audio in a virtual 3d environment. Distance attenuation, doppler shift, and directional sound emitters are among the features handled by the API. More advanced effects, including air absorption, low-pass filters, and reverb, are available through the EFX extension. It also facilitates streaming audio, multi-channel buffers, and audio capture.
gtkaml is an XML syntax and parser that extends the Vala.Parser and transforms all your tags into a valid Gtk+ UI class. It features a casual XML syntax for describing the way Gtk widgets are laid out in a (new) custom widget you're creating. Code "islands" (written in Vala) are used for widget signal handling and other methods/signals/properties that you're introducing. It doesn't depend on an external library at run-time, and it is much more readable than the usual UI boilerplate.
Watchee supports GPS location based live tracking from mobile phones which support J2ME and PDAs running Windows mobile. The track can be viewed on a Web portal. Key features are high data compression to minimize your phone provider costs, chatting, fine grained buddy permissions, sending in real time, and location bound photos.