Google's Android platform is gaining ground on its rivals in the U.S., such as Apple's iPhone and RIM's BlackBerry.
But Android did just NOT pass the iPhone in Web traffic in the U.S. last month, despite a story on TechCrunch with that assertion as the headline.
Based on recent comScore data, we estimate that iPhone-based web traffic is still at least 2X Android web traffic in the U.S.
So why did TechCrunch get it wrong?
The TechCrunch post is based on the latest monthly ad statistics from AdMob, a mobile ad network that's being acquired by Google. Specifically, one graph in AdMob's report showed that in March, Android's percentage of ad requests in AdMob's network surpassed the iPhone for the first time. (In the AdMob chart, Android ad requests are presented in red, and iPhone in dark blue.)
TechCrunch takes this to mean that Android Web traffic exceeded iPhone Web traffic. "AdMob measures mobile ad impressions, which is a proxy for overall traffic," TechCrunch's Leena Rao explains.
That's simply not accurate.
While Android's user base -- and Web traffic consumption -- is growing and could eventually rival Apple's, AdMob's ad request data is NOT a proxy for mobile web usage in general.