Find: MasterCard, Visa, American Express, Discover join ISIS mobile payment network

The jockeying for mobile payment gold starts getting ugly. Seems there are two camps: isis and google. 

MasterCard, Visa, American Express, Discover join ISIS mobile payment network

Four of the largest credit card issuers in the world — MasterCard, Visa, American Express, and Discover — have all announced today that they’re joining ISIS, a partnership of American [...]

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