The biggest advantage of this agile app-deployment model is not having to rely on revenue from subscriptions or single-issue sales.

这个灵活的应用程序部署模型最大的优势在于：它不依赖于预订或零售的收入。

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Revenue: Primary revenue will come from subscriptions and transactions, with advertising as one driver of those revenue lines.

收入：  Primary主要收入来自服务订阅和交易，广告将是这些收入流主要驱动因素。

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CEO Jeff Bezos also introduced an Android Kindle app, further driving revenue from e-books and newspaper and magazine subscriptions.

执行总裁杰夫·贝佐斯也开发了安卓平台的Kindle应用程序，这一举动更增加了电子书、电子报纸和杂志订阅的收益。

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Another source of revenue comes from subscriptions.

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We expect to see increased revenue from Xbox Live subscriptions in the coming years.

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Publishers keep less than half of the revenue from sales of their subscriptions on the Kindle, according to publishers.

WSJ: Publishers Nurture Rivals to Kindle