Customers strongly prefer mobile to branch.

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M-PESA, launched in 2007, provides banking transactions without the need to visit a bank branch by using mobile phones and 19, 500 agents where customers can deposit and withdraw money, pay bills, purchase airtime and transfer money to other users and nonusers.

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It says cash machines, online banking and mobile banking have not replaced the branch, but have just given consumers more choice.

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Like many PC stalwarts, NVIDIA wants to branch into the fast-growing mobile devices market.

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There were nearly 6 billion mobile phone subscriptions worldwide in 2011, according to the International Telecommunication Union, a branch of the United Nations.

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