A pair of mobile marketing analytics companies -- Velti and Chitika -- have released statistics updating trends in both mobile ad impressions and web traffic, with some surprising results. According to Velti, the introduction of the iPhone 5 and iOS 6 has pushed Apple into a growth position over combined Android statistics in ad impressions. Chitika, meanwhile, reports that Android's top-selling phone, the Galaxy S III, has fallen to the iPhone 5 in terms of web traffic -- possibly suggesting that sales of the new iPhone have grown significantly.