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Digital 'wallets' proliferate at cellphone show
Cash, coins and credit cards are so Twentieth Century.At least, that's the opinion of electronics manufacturers, phone companies, banks and credit card issuers that expect cellphones to be the main way consumers pay for purchases in the not-so-distant future.The trouble is that vision-of-tomorrow is somewhat blurry, as evidenced at the U.S. cellphone industry trade show held this week in New Orleans.