FORTUNE -- Do the rich tweet from iPhones and the poor from Androids?
Patently Apple's Jack Purcher didn't buy it. And with series of maps like the one above, he made the case Friday that when it comes to mobile operating system preferences, geography, not income, is destiny.
Who's right? You decide. With Mapbox's Web app you can zero in on any part of the world that interests you. I'm in Paris this week, and what Mapbox shows reflects what I'm seeing on the Metro: A decidedly mixed bag.
Mesh networks: An explainer.
By Ryan Bradley
FORTUNE -- A few weeks ago, a messaging app called FireChat launched. It looks, at first, like just about any other messaging app in an already very crowded market, but FireChat is sneakily subversive and quite possibly the most important thing to happen to the Internet since international network hubs began to form in 1995.
(This is the moment when you ask: "Wait ... what? Why?")
FireChat uses MOREMar 31, 2014 11:38 AM ET
Apps crash more frequently on iPads and iPhones than on Samsung's Android devices.
FORTUNE -- Quentin Hardy may be forgiven for looking at the attached charts and seeing what he expected to see.
Summarizing a new report on the failure rate of mobile apps, he wrote in Friday's New York Times that apps running on Google's (GOOG) Android operating system crash more frequently than apps running on Apple's (AAPL) iOS.
"iOS 7.1 has the fewest crashes," he adds, "most likely thanks MOREPhilip Elmer-DeWitt - Mar 28, 2014 8:40 AM ET
The dean of Apple bloggers offers a new metaphor from the trenches of the app wars.
FORTUNE -- Tech pundit John Gruber, best known for his Daring Fireball blog, launched a mobile app last summer, and it seems to have given him new perspective on the smartphone market. Or at least a new metaphor.
The terms most often used to describe the competition among Apple (AAPL), Google (GOOG), Microsoft (MSFT) and Samsung are drawn from MOREPhilip Elmer-DeWitt - Mar 17, 2014 4:31 AM ET
Also Safari, Twitter, Calendar, iBooks, FaceTime, Keynote and Software Update.
FORTUNE -- Ashkan Soltani, an independent computer security expert best known for analyzing Edward Snowden's NSA leaks for the Washington Post, has published a list of applications running Mac OS X 10.9 that he says are vulnerable to the same security hole Apple (AAPL) patched in its mobile operating system on Friday.
They include apps used by millions of Mac users every day: MOREPhilip Elmer-DeWitt - Feb 24, 2014 9:56 AM ET
Did U.S. government spies create the security hole that Apple patched last week?
FORTUNE -- You don't have to put on a tin hat to find the timing of the "Apple" entry in the attached Powerpoint slide suspicious, although a tin hat probably helps.
The slide, marked TOP SECRET, was one of the first documents leaked to The Guardian and the Washington Post by NSA whistleblower Edward Snowden last June. It lays out MOREPhilip Elmer-DeWitt - Feb 23, 2014 9:14 AM ET
The top chart makes for exciting headlines. The bottom chart is the one that matters.
FORTUNE -- For investors who missed Charles Arthur's useful primer in The Guardian on the difference between market share and installed base, the charts he published Thursday make the point even more succinctly.
The top chart, created from the U.S. smartphone sales data that Kantar publishes, is the stuff of tech headlines -- the horserace in which Apple's MOREPhilip Elmer-DeWitt - Jan 10, 2014 7:33 AM ET
For owners of Apple's iPhone or iPad, it's a straight shot from iTunes to their device.
FORTUNE -- When it comes to understanding the difference between Apple's (AAPL) iOS and Google's (GOOG) Android, the long skinny picture attached below is worth at least 1,000 words.
It was produced for the Taiwanese manufacturer HTC and spotted last week by 9to5Google's David Beren.
We have no idea, of course, what's going on within Apple to get MOREPhilip Elmer-DeWitt - Jan 2, 2014 4:30 PM ET
Two charts illustrate a key difference between the two leading mobile operating systems.
FORTUNE -- The chart at right, taken from the Wikipedia entry for Android version history, illustrates the problem app developers call Android fragmentation -- the splintering of Google's (GOOG) installed base into incompatible fragments. Applications that run on one combination of hardware and software don't necessarily run on others.
Wikipedia doesn't offer a similar chart for Apple (AAPL) iOS, and the graphic MOREPhilip Elmer-DeWitt - Dec 13, 2013 7:26 AM ET
Asymco's Horace Dediu now expects U.S. smartphone penetration to hit 90% by Dec. 2016.
FORTUNE -- I don't pretend to understand -- even after reading the Wikipedia entry on logistic regression -- the statistics Asymco's Horace Dediu used to draw the chart at right.
But even I can see that the curves representing various smartphone platforms have different shapes:
Orange: Research in Motion (BBRY), headed south
Blue: Microsoft (MSFT), recovering
Yellow: Android (GOOG), leveling off
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