Summary:

When Twitter co-founder Jack Dorsey unveiled his latest start-up, Square, in December critics harped that the company, billed as a mobile pa…

Square Mobile Payments Signature Screen

When Twitter co-founder Jack Dorsey unveiled his latest start-up, Square, in December critics harped that the company, billed as a mobile payments solution that would disrupt the traditional credit card processing world, didn

By Dianne See Morrison

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