Story today on the BBC, from analysis of 500 word stories written by UK kids between 5 and 13 for a competition 'Words including email, mobile and Facebook are in decline, it said.'
http://www.bbc.co.uk/news/entertainment-arts-32902170
(Interesting that mobile is declining, suggests the distinction is lost in a world of tablet, laptop and phone use where desktops are a thing of the past domestically)