Would you swap your smartphone for a dumbphone? So consumed have we become with social media and the constant stream of information leaking from the rectangle in our pocket, increasing numbers of us are said to be abandoning high-tech devices and switching off. Sales of basic models are up as users turn to inexpensive, temporary devices – or burner phones – to remain contactable but not necessarily traceable. Just last week my KentOnline colleague Joe Crossley put the concept to the test and ditched his smartphone for a £13 device while readily admitting that at the age of 23 it’s almost impos…