Okay so it seems this card is GlobalPlatform 2.1.1 Java Card (as mentioned in that old thread). I can order them as it looks quite affordable and easily available. I can get that even providing minimal volume is 20.
So assuming I have one, just unboxed and cut it to SIM form factor (ID-0), and put inside CCR1009. What now? Lets say I want to use it to keep VPN private keys (because that's what you use such cards for right?). It seems it supports RSA up to 2048 bit so it sounds like it's correct card... at least to rookie.