Japan has become the world's top country for mobile application revenue, according to an application tracking research firm, App Tracker. With Japanese going crazy for smartphone apps and tablet games, consumers in Japan now spend 10 percent more than U.S. consumers on all apps. Even a year ago, Japanese consumers spent roughly 40 percent less than U.S. customers on such apps and games, but this year's upswing, as well as the wave of smartphone use, has helped turn Japan into an unabashed app-loving country.

That's good news for those individuals and companies supplying Japanese consumers with digital content, worth ¥851 billion in 2012. In addition to apps, Japan also spends more on mobile phone games than North Americans, where there are three times more players.

In short, Japan has become a nation of game-players fiddling with their smartphones and tablet computers at an ever-increasing rate.