Google Maps for iOS 6 was downloaded more than ten million times in two days

"More than 10 million downloads in less than 48 hours after release!
We're excited for the positive reception of Google Maps for iPhone around the world. Congratulations to the Maps Team on the recognition for the passion and hard work they poured into it, for this release and over the last 7+ years."

Source:  Post on Google+ by Jeff Huber of Google