“Amazon is announcing general availability in the U.S. for in-skill purchasing, which allows the creator of a skill to sell content to an Alexa user–both one-off purchases and monthly or yearly subscriptions, with the entire transaction handled inside the skill via voice on a device such as an Echo or a third-party Alexa-compatible gadget. (As with mobile app stores, developers get 70% of the price paid by users, and Amazon collects 30% as its reward for facilitating the transaction.)”