LIRNEasia research found that almost all Filipinos at the Bottom of the Pyramid send at least one SMS a day.  Here is data from the supply side:

The Manila Times Internet Edition | METRO > Filipinos send 500M text messages daily

FILIPINOS sent an average of 500 million text messages a day last year, doubling the number of text messages sent in 2005, the National Telecommunications Commission (NTC) said.

Edgardo Cabarios, director NTC’s Common Carrier and Authorization Division (CCAD), attributed the increase to the promotional gimmicks offered by mobile-phone service providers like unlimited text messaging, voice call discounts and the rising subscriber number.

Data from the NTC show that the country’s subscriber growth rose by 23 percent to 42.87 million subscribers last year from the 34.8 million in 2005.

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