No it doesn't mean anything if the survey is from May but someone re-publishes it 6 months later trying to pass it off as new. Looking at these headlines below (all published around Dec 31) you'd have no idea that they survey they reference was published 6 months ago.
[url=https://fortunedotcom.files.wordpress.com/2015/01/techmeme.png?w=407]Image[/url]
Engadget referred to it as the "latest survey" and mused that Apple's 2 point drop could be because customers are unhappy with the larger iPhones or because of bendagte. Yet because the survey was from May, neither iPhone 6 model was even included! Engadget did update their story after the fact to note the results were from May but they never updated their story headline.
Obviously Zach Epstein at BGR has an agenda but you'd think others like Engadget would do a little more research before running with the story (like maybe checking their own archives as they probably already ran this story last May).
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Source? I can't remember MacRumors ever reporting a survey 6 months after the fact. And you'll note MacRumors didn't run with this story last week (probably because they took the time to go to the source website and check the survey release date).
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Um, in what I've written about this I've mentioned that neither the iPhone 6 nor the GS5 were included. And obviously the Note 4 wasn't included either. So what good is publishing this information 6 months after the fact? Other than the site in question has an agenda. But it's still stupid because for all we know when a new survey comes out next year that does include the latest products Samsung could still be on top.
Can you explain me what changes the outcome of the survey if some sites you don't like reported it in December?
Now, explain me why it is important that the iPhone 6 is not included when ALL the anual reports are before the latest iPhone release.