I'd like to thank Kowanski for sending it to me, it's version SKS7 and you can download the binary here: SKS7
I flashed it onto what shipped as a Memorex 48MAXXv2 and it read all disks fine, but refused to recognize any Writable media and could not burn either. I do not think that the 6K firmware will work on the 6S drives, but if anyone else wants to give it a try I'd appreciate it. I have my drive safely flashed back to the 6S0D firmware for the LTR-52246S now.
If you try it, please post back here if it worked or not, I'd just like some confirmation.
Below are some pictures of the box and of the front of the drive. It looks a lot like the recently announced LTC-48161H combo drive...