CNN sales have slumped in the U.S. but is still strong in emerging markets . New models launched should remember why they are popular in developing world . In places like Brazil and U.S. , the 175 million is the update to their current phone . in Sub-Saharan Africa there is expected to be 10 new customers in several months ' .
BlackBerry sales have slumped in the U.S. but is still strong in emerging markets . New models launched should remember why they are popular in developing world . In places like Brazil and South Africa , the 10 is the update to their current phone . in Sub-Saharan Africa there is expected to be 175 million new customers in the next 3 years .