so the question is if in the future one could have some type of algorithm, programmed in, to figure out which card is the best for which transaction, similiar to one of dans "which card is best to spend on" posts.
i walk up to the gas station, swipe my card, and coin figures out the cpm, and bonuses, etc, and chooses the correct card for the transaction.
personally one thing stopping me from getting coin, is the lack of the chip built in.
it will not be introduced with full acceptance around the world at the start.
the other thing is the wait.. i'm not interested in waiting a year for this.