1 Number to Prove We're Just Starting the Smartphone Revolution

It took half a century, from 1900 to 1950, for at least half of American homes to have a phone in them. When the first mobile phone came along, that time frame shrank significantly, taking less than 20 years. Smartphones -- essentially computers in everyone's pocket -- reached the 50% saturation rate this year, taking a little over 10 years to get there.

Look at how quick adoption rates have become, as assembled by MIT's Technology Review:


Sources: Forrester, Knowledge Networks, New York Times, Nielsen, Pew, U.S. Census. "No Phone" derived by subtraction.

Sources: Forrester, Knowledge Networks, New York Times, Nielsen, Pew, U.S. Census. "No Phone" derived by subtraction.

Obviously, if smartphones are only in the hands of half of the Americans out there, that leaves another half for mobile companies to grow in to. Though that's a big number, it doesn't offer the type of growth that some investors want. In fact, such statistics lead some to think that it's already too late to get in and profit from the smartphone revolution.

Think again
If we were just talking about America, then the bearish take on investing in smartphones would make sense. But we're in a global economy now, and the opportunities abroad are massive.

Traditionally, it was assumed that adoption of technology in developing countries would only increase at a rate commensurate with the country's GDP growth. But when the mobile phone came along, that paradigm was thrown on its head.

In 2001, the industrialized world had six times as many mobile phones per capita as the developing world. By 2011, the industrial world only had 50% more per capita. That's still a lot more, but the margin between the two has shrunk significantly -- and that meant big business for mobile phone and network providers.

The International Telecommunications Union reports that currently, about 45% of the world's population is now covered by the infrastructure necessary for 3G networks to function. That number, it is assumed, will be growing in the near future as well. With these networks in place, the same type of growth that took place for mobile phones is ripe to occur with smartphones.

Possible big winners
At the beginning of 2012, global smartphone penetration was estimated at just 10%.

Let's say that one more time: 10%.

Whereas smartphone or network providers focused solely on America would be lucky to double their penetration in time, those focused globally have an absolutely massive opportunity in front of them.

Some of the biggest players in the world are right here at home, so you're probably quite familiar with them. First and foremost is Apple (NAS: AAPL) . No, the iPhone might not have the greatest market share of smartphones when its products spread abroad -- but that's because it's price point may be outside of what's affordable for most of the world. That being said, sales in the company's Asia-Pacific region last quarter increased 114% from the year before and accounted for more than a quarter of the company's total revenue.

Next is the other gorilla in the room: Google (NAS: GOOG) . The company's Android operating system is the only real alternative emerging to Apple's iOS. Though the race between the two is tight in America, Android has a commanding lead globally, owning a 59% market share.

If there's one company you don't want to bet on, it's former smartphone champ Research In Motion (NAS: RIMM) . The BlackBerry has lost an incredible amount of ground to rivals, and it would take a herculean effort to turn things around at the company.

Smarter, lesser-known plays
I'm probably not telling you anything new when it comes to Apple, Google, and RIMM. But there are other ways to profit from the smartphone revolution as well. Qualcomm (NAS: QCOM) , for instance, offers up patented nano-chips that many smartphones need for LTE technology. It also owns an impressive portfolio of patents that provide high-margin licensing revenues.

But none of these companies qualifies as what we consider to be the best play on the smartphone revolution. Our top analysts have created a special free report: The Next Trillion-Dollar Revolution. Inside, the team will tell you the one company they think will profit more than the rest. To find out what company that is, get your copy of the report today, absolutely free!

At the time thisarticle was published Fool contributorBrian Stoffelhas yet to give in and buy a smartphone, much to the chagrin of his wife. He owns shares of Apple and Google. You can follow him on Twitter, where he goes byTMFStoffel. The Motley Fool owns shares of Qualcomm, Google, and Apple.Motley Fool newsletter serviceshave recommended buying shares of Google and Apple, and creating a bull call spread position in Apple. The Motley Fool has adisclosure policy. We Fools don't all hold the same opinions, but we all believe thatconsidering a diverse range of insightsmakes us better investors. Try any of our Foolish newsletter servicesfree for 30 days.

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