I'd been working on getting easypopulate to handle product attribs, and managed to achieve something functional. I haven't tested the code extensively yet, but it should theoretically be capable of handling any number of product options, option values, and languages.
This is still beta code, and I haven't put it up as a contribution yet. If anyone is interested in giving this a try (at their own risk!), you can download my easypopulate.php file, and a sample tab-limited file (fr