It doesn't seem like this accomplishes the most important task - library conversion. If I could convert an Altium library to Eagle, well, that would be the last year I spent money on software licensing. You end up with this investment of time in libraries that are vendor-specific. That's what keeps most of the EEs I know with one software package or another.

Also their companies don't usually offer a choice. Big companies have a librarian who is in charge of the official part libraries. But if you could easily port an OrCAD library to Altium or Eagle or whatever, that would be a game changer, I think.