Encours.org is a teleconferencing system that works directly in your Web browser. It has shared slides that are visible to all, an integrated audio system with recording, "laser" pointers for lecturers, video replays of the presentation, and a chat interface with the audience. It can be connected to a phone server.
PRISCILA is a simple SDL/OpenGL presentation application with a keyboard-based WYSIWYG built-in editor. Its aim is to provide a vi-like tool to write presentations. The current editor is still very rudimentary and several editing actions have to be done by editing text files. Each presentation slide is a real 3D scene composed of several items. Special effects can be applied to modify item appearance, and actions can be added to modify items' behavior. 3D objects, effects, and actions are GNU/EDMA objects, which automatically provides plug-in support, easy updates, and more. An RFComm Bluetooth interface is included for remotely controlling a presentation from a mobile device.