The following chart, titled, "How Popular is the iPhone" shows smartphone numbers throughout the world and the US.
It seems that the BlackBerry is still the most used smartphone in the US, with the iPhone being second by far. Android is further behind that, followed by Palm, Linux and poor old Symbian.
According to the chart, between the months of October and December 2009, BlackBerry made up 36 percent of smartphone sales with Android at 28 percent and iPhone coming in at 21 percent.
Have a look at the chart after the jump: