AFAIK, the difference between the OP's card platform and all others comes down to fees, freedom, and privacy.
| .................. | OP's eMunie card platform | All others AFAIK |
| fees | customer: 1 cent
merchant: zero | customer: varies
merchant: ~2-3% |
| freedom | yes | 3rd party or govt can block funds |
| privacy | yes | 3rd party or govt can track your purchases. |
Definitely a good thing to try after all everyone has to have a card when doing transactions. $20 is nothing as compare to being tracked.
This may seem to attract a lot of criminals who hides from being caught. I like the idea. i hope they will develop a token too so we can invest to its development.