ReadWriteStart: Square’s On-the-Go iPhone Credit Card Scanner.
“Usually, running credit card transactions means opening up a special merchant bank account and dealing with various fees. Any bank account will work with Square, and the only charge to use the service is $1 for the application and the card reader accessory; however, Square can afford to give away the dongles because they will be banking 2.9% of each transaction.” Very cool. Another plus for iPhone.
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