As business and commerce go mobile, payment technology is playing catch-up, trying to come up with a simple and powerful way to allow businesses to accept credit card payments on the go (because who even uses cash anymore?).One possible answer is PAYware, the mobile-payment system coming from point-of-sale giant VeriFone. PAYware finally saw its app go live in the iPhone App Store today, bringing its secure credit card transactions to the iPhone, and making itself the first real competitor to Twitter co-founder Jack Dorsey’s, Square.

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