Advertisers aren't ponying up for mobile clicks. But might they pay more for a phone call or store traffic? As more of Google's users migrate to mobile devices, the company is working on new ways to measure mobile marketing success.
In five days, Apple will likely loose a new iPhone operating system on the world, and with it, new expectations of what a phone can do. Less glamorously—but no less importantly—it will usher in a new phase of innovation for mobile advertisers, who make the free apps we know and love a worthwhile pursuit for developers.