Hi, i’m starting a new opensource project.
This project aims to create a C++ library for 3D applications / games, the structure of the elements and data are based in COLLADA specification, using this specification as the file format. In the future it will have support for ECMA scripting inside the collada file, making it possible to create interactive 3d content. The renderer process will be completely abstracted from the library, making it possible to renderer the scene using any API.
For more information go to http://code.google.com/p/realsphere3d/
Everyone is invited to contribute! 
Thx