Each month, AdMob, a mobile advertising network, rounds up the data from over 6,000 mobile web sites and applications, analyzes it all, and releases their findings in their Mobile Metrics Report. In the September report, AdMob determined that the iPhone had become the #4 handset worldwide by count of ads requested. In the October release, the iPhone has skyrocketed all the way to #1.
Note that these rankings are not directly representative of sales numbers; while AdMob’s ad network is wide enough that these numbers can provide an accurate picture of usage trends, they don’t necessarily prove that one handset is outselling another.
