Less popular games include Frontier-ville (11 million), Mafia wars (8 million), and Words with Friends.
It gained 22% in the year ended Jan. 31, compared with 20% for the frontier-markets index.
The treaty's design for a frontier-free Europe, it seems, comes with a self-destruct button.
But Britain's new government, despite having an opt-out from a frontier-free policy, and some others are reluctant.
Historically, South Korea is a conservative society, with a penchant for frontier-type justice.
This season 800, 000 passengers, 25% more than the state's total population, will visit this last frontier--or, at least, a postcard version of it.
Every continent bar Antarctica now has its own frontier-lowering trade pact.
Although this might seem suspiciously of-the-moment, given the number of designers currently mining Americana heritage, for the 33-year-old Minnesota native, the frontier-meets-luxe look is a natural fit.
In the 21st Century, with nine billion mouths to feed in a few decades' time, is it feasible any longer to maintain a frontier-spirited free-for-all over half the planet's surface?
It is hard to see what concessions might turn a No into a subsequent Yes: the only conceivable new opt-out is from the Schengen frontier-free travel zone, and that would break up the long-established Nordic passport union.
ECONOMIST: Denmark and the European Union: Still an odd man out? | The
Before that, he was commander of the Frontier Corps - the paramilitary force that guards Pakistan's tribal belt.
As some social networking sites experience monstrous growth, they are becoming a new -- and extremely lucrative -- frontier for cybercrime.
The British-drawn boundary between the two countries is disputed by Afghanistan, which doesn't recognize as an international frontier the so-called Durand Line that cuts through the ethnic Pashtun heartland.
Due to investor expectations of profitability, companies will focus on loaning to borrowers in established markets rather than investing into the expansion of the microfinance frontier into under-serviced, riskier regions.
Charles Stirnweiss, the mayor of Forbach, argues that with the flush of German reunification fading, more German investors seeking lower costs are coming to Lorraine, seeing it almost as a single cross-frontier region with the Saarland.
As I report in the latest issue of Forbes, global automakers frustrated by problems elsewhere in the world are now rushing to open new factories in Brazil which they see as the next frontier for long-term growth.
FORBES: Brazil Offers Tax Breaks To Automakers For Research Investment
While the companies make up a varied landscape of technological know-how, financial wherewithal and enterprising ideas, they all share one common goal: The desire to conquer what is widely considered to be the final frontier of mankind -- the universe.
It would have been more relevant, historically and geographically, to refer to the annexation of the Afghan kingdom to the North-West Frontier Province by the British raj, which happened soon after the casual carve-up of the Ottoman Empire had enraged the Muslim world.
At America's request, Mr Musharraf shifted troops from the eastern border to secure the north-west frontier.
In theory, an easing of tensions along East Asia's last cold-war frontier ought to benefit all.
ECONOMIST: The region is about to get harder to manage, not easier
This has involved sending 180 extra federal police, to strengthen patrols along the 1, 600km Colombia-Brazil frontier.
One company getting high marks--an 86% approval rating across all of Reese's guru screens--is Frontier Oil Corp.
The BRIC countries are becoming large investors and trading partners of the so-called frontier markets, especially in Africa.
FORBES: BRICS Summit: A Gathering of Strange (But Strong) Bedfellows
Indeed, locals have told Americans that he has been sighted in the inhospitable mountains of Pakistan's north-west frontier.
As a result, artists and performers are leaving Pakistan's Swat Valley and the North-West Frontier Province in droves.
They said Turkish aid workers were giving food and humanitarian aid to the refugees at border crossings along the neighbors' 560-mile frontier.
Mr Obama has dubbed the Afghanistan-Pakistan frontier the world's most dangerous place.
Court documents said the case began in August 2009 with e-mail exchanges between Mr Mohamud and his alleged associate in Pakistan's North-West Frontier Province.
Police are still holding Aitzaz Shah, 15, and Sher Zaman, who were detained last month in Dera Ismail Khan in Pakistan's North-West Frontier Province.
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