The iPhone now accounts for 50 percent of mobile Web traffic from smartphones in the U.S., according to an AdMob Mobile Metrics report released this morning. Over the past six months, the iPhone has taken share from Blackberry and Windows Mobile. In August 2008, the iPhone made up only 10 percent of mobile Web traffic from smartphones. During the same time, Blackberry’s share has gone from 32 percent to 21 percent (with the Curve and the Pearl coming in stronger than the Storm), while Windows Mobile has taken an even bigger hit, declining from 30 percent to 13 percent. Palm is also down to 7 percent from 19 percent six months ago.
The only other smartphone operating system that is showing gains in mobile Web usage is Android, which has captured a strong 5 percent share just three months after launch.