The source is Nielsen Mobile, formerly Telephia. The interesting thing about them is that they do much of the service quality monitoring for the operators, so they have much more direct access to mobile usage information than folks like IDC and Canalys, the people usually quoted for smartphone share.
Wired was focused on Palm's loss of market share, which is indeed striking (but not exactly news). But take a look at the chart again; there are a couple of other items that I think are more newsworthy.
The first surprise is that Nielsen shows Apple in fourth place in smartphone share. That's wildly different from what Canalys, the source usually reported, has been saying (link). Here's how they compare for Q4 2007:
What in the world is going on here?
I'm not sure, but I have some guesses. Canalys doesn't directly measure market share, it receives self-reported shipment reports from the manufacturers and then adds them up. That means Canalys measures shipments into the channel rather than sales, and it depends on the hardware companies to be honest.
Riiiight.
Nielsen Mobile doesn't explain on its website exactly how it measures share, but apparently it's using a mix of survey results and the usage data it gathers from the operators (link). So its numbers should reflect current usage of phones rather than shipments. If Nielsen is measuring installed base share, rather than share of current sales, that might explain the difference. Although in that case, share should not be changing as fast as Nielsen shows. So I'm still confused.
If anybody can shed more light on the source of the difference, please post a comment. I've also asked Nielsen, and will let you know if I hear anything.
The conflict in the numbers underlines how ridiculously useless the publicly-available third party sales numbers are in the mobile phone market, and how little attention the press is paying to the inconsistencies. Apple's share varies from 8% to 28%, and no one even notices. Hey, we got a pretty chart and it confirms what we wanted to say, so don't ask questions.
If you want more information on the problems with mobile market share tracking, I wrote a detailed post here (link).
I said there were two newsworthy things about the Nielsen numbers. Can you spot the second one?
That's right, since the iPhone was released, RIM has been gaining share. So much for the folks who predicted at the launch of the iPhone that it was going to take the smartphone market away from RIM. Instead, at least in the first round of competition, we see what you'd expect from a segmented market -- RIM appeals to some customers, Apple appeals to a different group, and both companies do well.
I can't wait to see what the numbers will look like in six months, after the iPhone 3G has been out for a while. Although probably Canalys and Nielsen will still disagree wildly on what's happening.
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