I have just received a notice from our dealer that Autodesk has released new free add-ons for Inventor 2008. From labs.autodesk.com you can download the Parasolid and UG-NX plugin module. It adds the ability to read and write Parasolids x_t and x_b files and read UG-NX prt files directly from Inventor. We have quite often inquiries about various file formats we can handle so this will help us a lot. Thanks, Autodesk!
Converting foreign 3D formats in CAD world is always a big pain so anything that help us poor users is welcome.