Companies struggle to popularize mobile money

Mobile money may seem like a hot concept, but consumers aren't warming to it. At the world's largest cellphone trade show, here in Barcelona this week, the 70,000 attendees are encouraged to use their cellphones —instead their keycards— to get past the turnstiles at the door. But very few people took the chance to do that. The process of setting up the phone to act as a keycard proved too much of a hassle.

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