Some people do. Fortune's David Kirkpatrick shares some surprising facts, worrisome behavior and huge growth opportunities in 'The Mobile Generation.'

By David Kirkpatrick, Fortune senior editor
NEW YORK (Fortune) -- People are becoming increasingly dependent on their cellphones. According to Dan Schulman, CEO of cell operator Virgin Mobile, one in five will interrupt sex to answer their phone.

Mobile commerce has finally arrived, with PayPal, MasterCard, Cingular, and a host of startups fighting over the $24B cash-on-cell-phones market.
By Michal Lev-Ram, Business 2.0 Magazine writer-reporter

Business 2.0 Magazine) -- When Amazon.com engineer Gaurav Oberoi went on vacation to Europe with friends in 2004, they decided not to worry about who paid for what until after the trip.

But that meant recording expenses in a paper notebook, typing the numbers into a spreadsheet, and e-mailing it back and forth. "Splitting bills can be a relationship killer," Oberoi says.

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