Heh. Coursentenza. Not all that bad for a site name.
Probably the best way would be to build a solid network of non-english speaking Universities and then, once the kinks are worked out, have them also publish their english-language courses.
There are quite a bunch of Universities out there that already publish lectures, and I'd imagine that with time there will be more and more. A particular example of quality is TIMMS[1], which has been around almost as long as MIT open courseware.
[1] http://timms.uni-tuebingen.de/Themen/Themen.aspx