The number of iPhones reported here is a much rounded number. The iPhone represented only 2.2% of the worldwide cell phone market in 2009. Nonetheless, profits from iPhones represent a much higher percentage of total profits from cell phones. According to the source, Nokia had nearly twenty times Apple’s market share, but profits from the iPhone were nearly the same as profits from all of Nokia’s phones combined.

Geographic reference: World
Year: 2009
Market size: 25,000,000 units
Source: James Surowiecki, “The Financial Page: Soft in the Middle,” The New Yorker, March 29, 2010, page 45