One of the biggest benefits of owning any smartphone or tablet is the powerful functionality that it gives us in the palm of our hands. We take things like text message, phone calls and e-mails for granted, but if you had suggested fifteen years ago that we would have devices like the Apple iPhone or the Samsung Galaxy S II that were capable of sending e-mails, taking photographs and anything else you can think of then you would have been laughed at and accused of wishful thinking.