This gives them greater flexibility around which devices they use, whether that's using their tablet after their handset battery runs dry, keeping them connected on their PC when they've left their mobile at home or staying in touch when they are in an area with Wi-Fi but no mobile signal.

ENGADGET: O2's TU Go software spreads your phone number across multiple devices

While Apple and Samsung go head-to-head in the mobile melee, Vizio has leapt ahead in the HDTV market by staying put.

FORBES: 2. Convenience

Staying at home is unappealing to DoCoMo: most adults already own a mobile phone, and growth is stagnant.

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Staying in touch with loved ones has been difficult - the internet and mobile networks have been affected - and distressing.

BBC: School Report 2011: Children of the revolution

The paper also said that prosecutors have mobile-phone records showing that the girl was a frequent visitor to Berlusconi's house outside Milan, staying on one occasion for at least two nights (though she denies having had sex with him).

ECONOMIST: Silvio Berlusconi's troubles