Buyers will hopefully recognise a good seller (goods corresponding to description, fast shipping) or sellers will recognise a good buyer (fast payment).

FORBES: Trust On The Internet: The Solution Is Ahead

It is clear that in the US everything is done to make the payment fast and convenient.

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Executives in the banking, retail, and technology industries acknowledge that mobile payments must tantalize consumers with targeted coupons and offers to demonstrate they are more valuable than an ordinary plastic card, which has been a fast and reliable payment method for about 50 years.

WSJ: What's in Your Mobile Wallet? Not Much

Braintree provides online and mobile payment technology to fast-growing consumer-facing services like OpenTable, Fab.com, Airbnb, Uber, Angry Birds, and Living Social.

FORBES: Braintree Wants to Make Mobile Payments History

Around the world, every second of every day, First Data makes payment transactions secure, fast and easy for merchants, financial institutions and their customers.

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"They offered staged and part payment and possibilities but nothing hard and fast, " Motherwell chief executive Leeann Dempster told BBC Radio 5 live.

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Led by Jack Dorsey, who helped set up Twitter, Square has pioneered mobile-payment systems for smartphones, but it has rivals in this fast-developing market, including Google and PayPal.

ECONOMIST: Business this week

Wave it near a reader, whether on a gas pump or in the fast-food line, and if you have enough credit on the card it's linked to the payment takes only seconds.

FORBES: Time And Money Together

We are fast approaching a time when currencies will be serious differentiators and competitive wedges for companies simply because customers demand a particular payment type.

FORBES: Virtual Currencies and Roach Motels