Nick D’Aloisio, aged 17, who developed the smartphone news app Summly, displays the app as he poses for a photograph at offices in central London March 26, 2013. Got a tech idea and want to make a fortune before you’re out of your teens? Just do it, is the advice of the London schoolboy who’s just sold his smartphone news app to Yahoo for a reported $30 million. REUTERS/Suzanne Plunkett (BRITAIN – Tags: SCIENCE TECHNOLOGY BUSINESS SOCIETY) – RTXXXWQ