The document discusses the rise of the two screen world, with people using both their mobile phones and other screens like tablets or computers. It notes that 95% of people will check their phones during a presentation, and that there are now over 5 billion mobile phone users. The mobile industry is growing rapidly, with Android and iOS being the dominant mobile operating systems and people spending significant time and money on mobile apps. The definition of "mobile" is changing as more people access the internet from their phones than computers.