well, it's really hard to know the exact $ amount beacuse there has been a significant delta from the highest to the lowest. 2 mill seems to be a good barometer (without re-validation, once revalidated could be signicantly higher) as another poster was eluding to, lambertslunitics has a very detailed and thoughtful posts regarding licensee's potential payment based on aggregate annual sales. if you have a chance I'd encourage you to read his posts as imo his controbutions provide invaluable information to the board.