NaroCAD opensource project has reached version 1.0
The most important technological point of view of NaroCAD is that is built on top of C#/.NET and uses OpenCascade 6.3 for all work involved in visualization, modelling. The OCAF like layer is rewritten in C# for maintenance reasons as is pretty hard to work with two debuggers, one to debug C++ OpenCascade code and the other side the C#.
Also we would like to thanks to OpenCascade team, elsewhere this project would not be ever possible!
Release announcement: http://narocad.blogspot.com/2009/06/narocad-10-released.html