I can confirm that this works, and works well, on the most current version of Mac OS X (10.8.4).
It’s like a breath of fresh air; so long have I not been able to easily transfer files to and from my calculator, resorting to cumbersomely transferring files via msd8x, I’d begun to feel like I had no choice but to leave the calculator community. Now that I finally have a reliable way of connecting to my calc… Well, I’m very happy. ^_^