Inch mode works on this controller, you just have to mentally replace mm with inch. It would be nice if it were actually switchable between mm and inch, but short of that, it would be nice if the controller referred to "Units" rather than "mm". It would make the controller more universally appealing.
I've mentioned the inch thing a few times, but I don't think people are grasping the concept of using it in inches. I've used it like this from day 1.