How the iPhone Could End Up In Second PlaceJohn Herrman3/29/10 1:24pmFiled to: SmartphonesiPhoneAndroidApplewebkitMobile Browsingadmob387EditPromoteShare to KinjaToggle Conversation toolsGo to permalinkHere are the US mobile web traffic figures for iPhone OS and Android, getting ready to collide: Android, on its way up; iPhone, on its way down. So when will Android overtake the iPhone? Try next month.AdMob's Mobile Metrics Report sees a predictable continuation of what we'd seen before from the ad tracking firm—specifically, that Android is on a serious tear, thanks in no small part to the massive success of the Droid. But before, the iPhone seemed unassailable. Now, it's about to get trumped by Google's OS, on terms it defined. In the US, that is. The rest of the world's still warming to Android.