Show me the Money
Eventually, the people that carry a credit card (as we know it today) will be in the minority, but until another payment system takes its place — Coin is poised to become a convenient way to store all of your plastic into just one card. Admittedly, it's just in the early adopter phase right now, especially since it hasn't even been released yet, but the social exposure it will have once it's out in the wild should give it some feet. Dealing with people's money isn't a business to take lightly though.
From a consumer standpoint, $100 for a device that you'll have to replace around about every two years sounds awfully familiar to the subsidized phone model the U.S. carriers have engrained into the American subconscious. Yet, instead of a pocket-sized computer, you're paying for a thing that just makes it more convenient to pay for things — that you put in your wallet, which is in turn, in your pocket.
Coin is just a pit stop, but it'll be the air-conditioned kind. The real thing will be when it's merged with some kind of mobile technology. Phones are the logical pieces to the puzzle. The problem is making it a fluid experience that is significantly better than the current method, because right now — the current methods are good enough for most. I must say though, the biggest feature that doesn't seem to be getting much press is the fact that your phone will alert you if you've left your Coin behind.
Well, whatever way you dice it — if you'd like to grab a Coin, and also make my purchase $5 cheaper, there's a big button below begging to be pushed.