Should Google Get Aggressive About Monetizing Android?

Nerval's Lobster writes "Google's core search-advertising business is slowing down (despite an uptick in revenue and earnings for the most recent quarter) and a new report suggests that advertising ROI is much higher on iOS than Android. In light of that, it's worth asking whether Google, having dominated much of the mobile-device market with Android, will ever get around to more aggressively monetizing its mobile operating system, and what that could mean to the manufacturers that have been loading the software for free onto their hardware. If Google started charging licensing fees to manufacturers, and attempted to clamp down so that Google Play served as the only hub for Android apps (something that would definitely put it on a collision course with Amazon, which boasts its own Android app store), would it be shooting itself in the foot? Or would the rest of the ecosystem respond in a muted way, considering the sheer size of Google's power and presence?"