[fastspring]

Take a look at FastSpring. Global coverage for developer clients, their end users, payment methods/currencies located all around the world, and an embedded store SDK used to power such app stores as Adobe's new Exchange. Pricing includes international payment costs, int'l tax management, pci compliance, chargeback fees, file hosting, unlimited support, and all the merchandising functionality. Developers save months to years of work because it's an all-in-one service, the features are already there for the developer selling one time or recurring based payment products and services globally.