Like Square , Card.io is a credit entry scorecard machine for your earphone . But unlike Square , which require a dongle , Card.io just take a characterization of the credit wag to grab all those digits for payment . It ’s supposed to be unafraid and Card.io never economize your information , but it ’s still a small worrying . In any case , it ’s a really dodgy form of payment . The Android SDK is useable now . [ Android Market ]
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