Apple & Android: 50% of smartphones

Source: Asymco

The indefatigable Horace Dediu points out on Asymco.com that although Apple's (AAPL) iOS and Google's (GOOG) Android are less than two years old as platforms, together they have captured 50.2% of what he calls "the most competitive market technology market on the planet."

Below: The same data graphed as market share.

Source: Asymco

Also on Fortune.com:

• Apple is still sucking most of the profit out of the mobile phone business
• The ebb and flow of Apple's cash
• Chart: Where Apple makes its money

[Follow Philip Elmer-DeWitt on Twitter @philiped]