But even I can see that the curves representing various smartphone platforms have different shapes:
This chart was derived from the one copied below, part of an exercise in which Dediu estimates from time to time the point at which smartphones in the U.S. -- a leading indicator of global smartphone use -- reach 90% saturation.
His current estimate: December 2016, three years from now. By then, 230 million Americans could be carrying smartphones.
On the road to smartphone saturation, according to Dediu, that puts the U.S. in the "late majority" stage. See below:
Technically no, but the dynamics of the market are shifting in interesting ways.
FORTUNE -- On Wednesday, Asymco's Horace Dediu posted the chart at right in response to a statement by UBS analyst John Hodulik -- reflecting conventional wisdom on Wall Street -- that "everybody has got a smartphone."
Using comScore data, Dediu was able to show
That 40% of U.S. mobile customers still use feature phones and represent an untapped market
That except for BlackBerry, churn between MORE
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