There is now a new project available at sourceforge net, named
IrrExt. Managed by bitplane and Zeuss, it is a collection of extensions to the
Irrlicht Engine, like scene nodes, animators, GUI elements, materials, shaders, mesh loaders, physics wrappers and more, just about any extension to Irrlicht. Here is the
official forum announcement.
Dmitry also
started a similar named project at sourceforge.net, named 'irrlichtEx'. It is a small static library used to provide users with some extension classes and methods that are not provided by Irrlicht itself natively and will not be implemented there due to architecture unification and 100% portability.