I'll adopt your Arcade Card nat.
Are there any papers I need to sign? How big is the waiting list? No doubt there is an endless line of interviews.
Seriously though, once I get my Duo region modded - or at least with the distinct prospect of the Duo getting modded - I'll be getting my hands on an Arcade Card Duo. It's just too awesome not to have one.
As for 3X3 Eyes, the music seemed to be a little different after the first minute or so into the intro with the Arcade Card. Same melody, but minor changes in the sounds playing the "instruments" - I guess a more realistic sound. I'll have to look at B_T's side by side.