2015 marks the first time mobile devices become the primary means of connecting to the Internet with 51% share, according to venture capital firm KPCB. That figure was 12% in 2008, just as smartphones with big screens were beginning to take off.

Smartphones have been around for more than a decade, but the real recipe for a smartphone was struck around 2007 with the iPhone. Before then, smartphones had QUERTY keyboards and Internet connectivity was painfully slow. Worse still, mobile Internet was ugly and completely unusable. Ten years ago