Source - Nielsen

According to a study from  Nielsen , Android is now the most popular operating system among people who bought a smartphone in the past six months, while Blackberry RIM and Apple iOS are in a statistical dead heat for second place among recent acquirers.

Blackberry still holds the dominant share with 31 percent of the market Among all smartphone owners, though its lead over Apple is declining. Twenty-eight percent of smartphone owners have Apple iPhones, compared to 19 percent who have Android devices.