PayPal has also begun to promote its own mobile-phone payment services.

贝宝也开始推出自己的手机支付服务。

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Furthermore, although the project is funded by the Gates Foundation, researchers were limited by the infrastructure of South Africa's mobile phone payment system.

此外，虽然该项目由盖茨基金会资助，研究者仍然受到南非的移动电话缴费系统基础设施的限制。

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Stored-credit also allows anonymous payment systems to be offered, just as some travel cards or “pay as you go” mobile-phone services do.

储值卡还可运行匿名支付系统，类似一些旅游卡或“到期即付”移动服务所提供的服务。

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The way it works: consumers touch a payment device (which is in the form of either a plastic card or a sticker that can be applied to a mobile phone or any personal item) to a Zip-enabled contactless reader to make a payment.

FORBES: This Week in Credit Card News

Direct Operator Billing from MACH will enable Skype to bring a vital alternative payment method to these channels: Skype users will be able to charge their Skype credit to their mobile phone bill or pre-paid account, and enjoy the frictionless user experience gained from this payment method.

ENGADGET: Skype strikes deal with Mach to expand direct carrier billing for credit purchases

The online payment service providers and the mobile phone manufacturers (particularly nowadays with smartphones where it is a software-driven market) seem genetically indisposed to interoperability among their services: they are used to working in markets where relentless competition and one-upmanship is what moves the industry forward.

FORBES: Mobile Payments: What's Taking So Long?