RayTraccio uses a fully object-oriented design to achieve readability and ease of adding features. It already supports many shapes (planes, quadrics, and generic polygons up to the fourth degree) and some meta-shapes to do Constructive Solid Geometry (unin, intersection, and difference), many types of textures (with a bunch of meta-textures to mix textures at will), and reflection.
MegaLettering is the PHP engine created to manage the Italian translation of www.megatokyo.com, but it is written with general use in mind, so it can support any number of languages. Text in baloons can be translated by using a MySQL database that defines both the balloon shapes and the translated text and fonts to use to add new text.
No more updates to mkisofs
mkisofs will not receive more updates as a stand-alone program, but it can be found inside cdrecord project (http://freshmeat.net/projects/cdrecord/).