After reading this, I went and checked my box 'o cards again. I knew I had two PDS adapters in there which were slightly different. Interestingly, one has the corner of the circuit board which drops down lower than the top of the DIN connector, like the one discussed in this thread. The other has a PCB that stays nicely elevated. However, they both have two slots facing horizontally, which leads me to believe that despite the different styles, they were both intended for the IIsi.
However, wasn't there a thread a long while back about Daystar eventually using the same PCB for both adapters and simply populating it differently? E.g. one DIN connector only on the SE/30 version, with a right angle DIN so it points up and no FPU socket installed.
I also have the metal backed SuperMac adapter, but that is simply two PDS slots, not a "cache" slot and PDS slot. And so, not all that interesting. If I ever dig past the boxes covering up my workbench at present, I'll fire up the scanner and make pics. That's one reason I appreciate JDW's pictures so much. He can actually do what I only put on my list.
A year or two ago when folks were complaining about the high cost of Artmix's creation, I pointed out some of the economic realities of such a project. I wouldn't be surprised if he still hasn't made his investment back. At that price (and depending on how many are "hundreds"), he may only have to sell 50 to 100 to make back his cost, but that's no mean feat. In the mean time he's lost the use of thousands of dollars, and must store and manage his stock. I understand that living spaces in Japan tend to be rather cramped. Is that true?