Mobile World Congress: What future for phones?

Excitement at Mobile World Congress in Barcelona this week centred around new devices coming onto the market this year.

But what will the same people be talking about in 20 years time?

BBC technology correspondent Mark Gregory spoke to some of the most influential people in the mobile industry to try and predict where the technology is heading, and whether in a few years we will even have mobile phones at all.

Video journalist: Dan Curtis

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