Turns out that Spark Pay is the latest entrant in the market of providing card acceptance to small merchants using a smartphone or tablet. Spark Pay and its encrypting card reader allow small merchants to "start accepting all major credit cards immediately." The Spark Pay app is available on Android and iOS (iPhone and iPad).
Spark Pay is offering two pricing plans to merchants: a Pro Plan and a Go Plan. "The Pro Plan Pro offers a lower per swipe fee of 1.95% per swipe for Visa®, MasterCard®, and Discover® cards plus a $9.95 monthly fee. The Go Plan offers 2.70% per swipe for Visa®, MasterCard®, and Discover® cards with no monthly fee."
We expect to hear more about Spark Pay soon.