Support for ORM to OWL transformation is definitely a feature we'd like to add to NORMA. Some early prototyping work on this indicated its feasibility, and the later improvements to OWL (OWL 2) make this even more practical. However, at this stage we have not included any support for OWL generation in any of the NORMA plug-ins to VS 2005, VS 2008, or the upcoming plug-in to VS2010. Hopefully, we can provide such support in a future version.
As some indication of our interest in an ORM-to-OWL mapping, my current series of articles for the Business Rules Journal ( http://www.brcommunity.com/ ) focuses on ontological modeling.