Android, iPhone Dominate Mobile Browsing in April 2009

Google’s (s goog) Android and Apple’s (s aapl) iPhone together accounted for almost three-quarters of web browsing on mobile devices in April, yet not even 10 percent of device sales, according to the most recent Mobile Metrics Report from AdMob. But they were the only two — Symbian-, RIM- (s rimm) and Windows Mobile- (s msft) based devices all outsold Apple and Google; their users’ web browsing, meanwhile, came in significantly lower.

The browsing usage data of the iPhone and G1 (the U.S. name of the only Android-based phone at the moment) makes sense, given how the rest of the industry is still largely playing catch-up to the strong Internet experiences these two devices provide. That gulf should narrow, however, as the web browsing capabilities of more and more devices get beefed up.

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Also notable in the report: Apple and Samsung were the only device manufacturers in the top 8 to show positive change in worldwide data requests month-over-month. Apple reported a 4.1 percent increase in total requests, while Samsung showed a 0.5 percent increase. Of the other manufacturers in the survey, only HTC (s htc) and Sony (s sne) showed positive change in the number of data requests, but the market share of each is less than 2 percent.

The iPhone continued to account for a huge amount of AT&T’s web usage. AdMob attributed nearly 70 percent of AT&T’s web requests to the iPhone, and it remained a small but noticeable fraction of T-Mobile’s web usage as well (the iPhone is not officially available on the T-Mobile network).