Amazon launched their digital currency in the US in the summer and allows customers to make in-app purchases and purchase apps using them. They really only work on the Kindle Fire line of devices and most new owners get 400 coins that are worth $4.00 by buying a new model. The service has now launched in the United Kingdom.
Amazon Coins is only relegated to purchasing apps and content within them! The scheme has already attracted a range of comments on the Amazon site, with many complaining that Amazon Coins should be extended to allow the purchasing of books and other items from the retailer.