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Square plans to offer a version of its mobile card reader that can read EMV-chip cards, but the added security may come at a cost.

The Justice Department's legal case against American Express will not benefit consumers and will weaken competition, said Jeff Campbell, executive vice president and CFO of American Express.

Amazon.com, which just launched its own smartphone, may be nearing the launch of a mobile card reader that would work like Square's device, according to reports. Such a move would complement the company's many recent payment initiatives.

Zing is releasing an iPad app that leverages Web hosted technology to access a large selection of business functions through the point of sale.

Happy Belly Curbside Kitchen, which operates out of food trucks, is planning to become a sit-down restaurant within the next year and is relying on mobile point of sale technology to make the transition.

Apple may have to place more emphasis on the iPad's capabilities as mobile point of sale devices to help it recover from a small but sharp decline in tablet sales.

San Francisco-based Pose, one of the many companies in the cloud-based mobile point of sale market, aims to differentiate itself by eliminating its $49 monthly subscription fee.

The Justice Department's Operation Choke Point isn't really about combatting fraud, says Jason Oxman, CEO of the Electronic Transactions Association. Federal regulators simply don't like high-risk merchants, such as payday lenders and guns dealers, he says.

Cardfree, a mobile payments provider run by several of the people who designed the successful Starbucks mobile payment app, is using cloud-based technology to simplify the process of deploying its technology as it eyes international markets.

Mobile point of sale provider Appetize is targeting entertainment venues and music festivals, a niche that's often a testing ground for payments technology.

Getting retailers to add mobile payments – or even ban credit cards in favor of mobile – is not impossible. But it just might be easier to get merchants on board with mobile if they haven't even accepted their first payment.

Powa is reaching out to individual software vendors around the world in an attempt to accelerate integration of its point of sale tools with local mobile apps.

First Data Corp. has added technology from Perka, its customer loyalty subsidiary, to its Clover Station point of sale tablets. This is the latest of several updates First Data has made to boost the appeal of its Clover offering.

As Square's competitors pile on features to win business from the mobile payments pioneer, the company may be seeking to one-up its rivals by adding non-payment services.

Bitcoin enthusiasts are serious about Bitcoin merchant adoption, some might even say obsessed. But cryptocurrency nerds may find their obsession lucrative with BitPay's referral program.

American Express’ network rules have deterred Discover from using lower interchange rates to lure more merchants, a high-ranking Discover executive testified in federal court July 10.

Affirm, a consumer finance service in San Francisco, has introduced Split Pay, a program that allows online merchants to offer consumers competitive installment-based payments at the point of sale.

Oink is partnering with Optimal Payments to provide an payments option for products purchased online.

PayPal may not be trying to become a merchant's bank in providing working capital and next-day settlement on fund transfers, but the payments unit of eBay Inc. is trying to make it harder for its merchants to consider another provider.

Braintree has launched a toolset for developers that integrates directly with PayPal, which acquired Braintree in 2013.