Edward CastronovaLarry Dignan at ZDnet reports on Amazon's new money. The company sells everything, but the Amazon Coin will initially be used only for apps in the company's Kindle Fire platform. Still, if they build the currency, they can use it for anything else that they do. That means, the only reason you cannot use the Amazon Coin to buy this Batman Apron, this pumice stone, or this wood chipper is because Amazon has decided against it. For now.