Mobile payments are great in concept: No more cash. No more credit cards. Just call a number and put down your phone. That's it. French company Tagattitude claims to have developed what it calls the "first turnkey mobile payment platform that works on any of the 4 billion mobiles around the world."
It's just that we've heard such promises before, though we admit that Tagattitude's solution, "Tag Pay," uses the phone's audio channel in a clever way.
To execute a payment, the merchant first calls a number with his mobile device … Read more