Next to developer allegiance, where advertisers are spending their mobile ad dollars could be the most significant sign of whether Apple or Android is winning. New numbers out today show Apple's iOS is trouncing Google and it is the iPad that's leading the way. Indeed, the Apple tablet was the target of more than 91 percent of mobile ad impressions.
What's more, despite a near neck-and-neck race in terms of ad impressions on smartphones, the iPhone outperforms Android handsets for hauling in ad revenue. For example, while Android smartphones deliver 30.5 percent of mobile ad impressions, the platform receives just 27.7 percent of the revenue.
By comparison, although the iPhone receives 30.8 percent of impressions, it gets 36.44 percent of revenue, according to a mobile ad analytic firm Opera Mediaworks...