What's in a smartphone?

An ELI published in December 2013 was 'Be a mineral expert 4 – Recycle your mobile phone'. 

 Although the technology has moved on since then, the question still remains - "Why should I recycle my mobile (cell) phone?".
Did you know that smartphones contain a tiny bit of half the elements on the planet? Do you know about the super element indium that is soft, melts and conducts electricity? It's believed we shall run out of these rare super elements in a decade. Will we then have to mine them in space? To answer all these questions, we recommend you watch the BBC 4 programme 'Secrets of the Super Elements' in which Professor Mark Miodownik reveals the weird materials that have built our high-tech world.