During today's Google earnings call , one analyst asked for some color on Google's mobile business. CFO Patrick Pichette didn't give much more in terms of specifics, but he did offer up some color. "Without any radical effort, we already announced at end of Q3 this is a $1 billion run-rate business," says Pichette. Mobile is "growing at an amazingly blazing pace," he says. "We tripped into $1 billion." Mobile search is definitely something Google is keenly focussed on. Senior VP of Local Jeff Huber noted on the call: " In terms of where it trends over time, the smartphone is becoming an extension of the person, and how they do everything."