I'm fully aware I'm buying into a rather risky and possibly disappointing piece of tech with Coin. That's a risk I was aware of when I paid up, because the potential gain for me is pretty big. I'm always forgetting gift cards, my card looks just like a bunch of my friends, making mix-ups common, and I like to carry as little as possible in my pocket — generally I leave the house now with my license, one card, and a twenty. A smart card helps me achieve this. I'd like to give it a shot.<p>Just about everything I've backed on Kickstarter and elsewhere has been delayed or had its features tweaked. I kind of assume that will be the case now! If you're not okay with that, the early adopter game is probably not for you, and that's a perfectly reasonable reason to avoid it.