OpenSAND, formerly known as Platine, is a user-friendly and efficient tool to emulate satellite communication systems, mainly DVB-RCS - DVB-S2. It provides a suitable and simple means for performance evaluation and innovative access and network techniques validation. Its ability to interconnect real equipments with real applications provides excellent demonstration means.
Emma the Emulator is a generic 16-bit CPU emulator written as an educational tool. It supports a basic instruction set, has two registers and a program counter pointing to a heap structure which can be resized at compile time, and has a basic stack (not linked to the heap in any way), a flag register, and an internal "error number" for debugging purposes. There is also a "debug" mode which adds a lot of runtime debugging information and causes the program to sleep for 1 second between operations.
Viable is a plugin for the Eclipse environment that provides an interface as similar to vi (specifically Vim) as possible while maintaining access to all the powerful features of Eclipse. It supports visual block mode, common normal mode actions, command line mode (including command line history), "window" splits and management, regular expression search and replacement, and external filters and commands.
typhon is a slim and themeable OpenGL-based frontend, dashboard, and program launcher. It's meant to be easily used on Linux HTPCs, but also works on standard desktops or as netbook launcher. It has picture support for background, icons, stencils, and preview pictures. There's also an optional auto-screenshot mode that creates a preview picture of the launched app after a user-configured time. It also has a built-in OpenGL ffmpeg video player, which can be used to video preview programs and emulators/ROMs or simply to watch some movies. The video and everything else can be rotated into any direction and the position can be saved. Everything can be configured by the user, including colors, whole color themes, font, font size (any TTF font will do), optional sound effects, optional 3d icons (using glut), and background and preview pictures. Already installed screensavers can also be used as backgrounds using compositing and transparency.