Models From XSD

Does anyone know of any plugins/libraries that would help in creating
Model files from DTD/XSD schemas ?

I found one called models_from_xsd which is on rubyforge but sees no
traffic. I recall seeing the author at Railsconf last year and him
announcing that this plugin will be available soon.

I tried it but didn't get very far, anyone else have any luck with
this or any other plugins ?

.. TIA