From FastCompany: To state this as clearly as possible: The four American companies that have come to define 21st-century information technology and entertainment are on the verge of war. Over the next two years, Amazon, Apple, Facebook, and Google will increasingly collide in the markets for mobile phones and tablets, mobile apps, social networking, and more. This competition will be intense. Each of the four has shown competitive excellence, strategic genius, and superb execution that have left the rest of the world in the dust. · Go to The great tech war of 2012 →