If you just returned from a long trip to outer space, then you may not know there's a big election campaign under way in the US. Or just how heavily ``smart devices'' are involved.
Smartphones and tablets and the 3G and 4G telecommunications networks they utilise have shaped the campaign like never before in the US.
The previous US presidential election involved Facebook, Twitter and e-mail to an unprecedented degree. This one will do so at speeds that still seem a little terrifying today.
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