The iPhone accounted for 6.3% of ad requests worldwide, and ad requests from the Apple device increased 52% to 359 million in November.
Overall ad requests globally, however, were flat at 5.8 billion because of a 30% decrease in mobile inventory in Indonesia. AdMob also reported that T-Mobile's Android-powered G1 generated 15 million requests in November, only a few months after launching. It already represents 7% of all T-Mobile data traffic.
WiFi is becoming a growing method of connection for mobile users. AdMob said 8% of U.S.-based ad requests were made over a WiFi network, compared to 3% in August.--Mark Walsh