16% of US wireless customers have two or more cell phones

16% of wireless customers have two mobile phones: one for personal use and one for business, says Compete. When asked why they have two or more cell phones, 59% of the multiple phone owners want to separate personal and business use, 6% use one for incoming calls, the other for outgoing, 6% use one for normal use, the other as a walkie-talkie, 5% use one for peak hours, the other for off-peak hours: 5% use one for calling, one for e-mail, Internet and other data: 1% use one in a car, the other with them.