Advertising has yet to catch up to time spent on mobile phones
The use of mobile phones has dramatically increased; in fact you probably own a Smartphone and perhaps even reading this article from it, people much like yourself enjoy being able to remain connected to Technology even whilst on the go.
Therefore the rising boom of Smartphones will increase and has already surpassed PC sales making it 1 billion smartphones that are currently in use and 6 billion mobile phones (that aren’t smartphones) still active, yet people are continuously converting and will continue, soon enough anything other than a smartphone or greater will cease to exist.