After cramming Web browsers, e-mail and music and video players into cell phones, the wireless industry is now trying to make more money by adding mobile advertising and credit-card shopping to handsets.

She expects the mobile advertising market to more than quadruple to $275 million in 2007 and reach $2.2 billion in 2010. The market was $60 million in 2006.

Once wireless-enabled credit cards, which consumers can wave at a reader instead of swiping, are more widely used, U.S. mobile companies will start putting credit cards into their phones.

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