Word is going around that carriers are actually getting a cut of the ad revenue when the handsets come bundled with Google applications such as Search, Maps and Gmail, since those aren’t a requirement of Android. Of course, the advertisements served on those platforms are almost non-existent, aside from those displayed along with search results. But with Google’s recent purchase of AdMob for $750m, things might get significantly juicier for the carriers. There isn’t anything wrong with this, of course, but it could be one of the many factors are to why Google’s Android has been gaining a lot of momentum in the market. Google and several carriers and handset makers declined on comment about this latest update.