Justin Sullivan/Getty Images
An icon for the Google Maps app is seen on an Apple iPhone 4S on December 13, 2012 in Fairfax, California. Three months after Apple removed the popular Google Maps from its operating system to replace it with its own mapping software, a Google Maps app has been added to the iTunes store. Apple Maps were widely panned in tech reviews and among customers, the fallout resulting in the dismissal of the top executive in charge of Apple's mobile operating system.
Google is facing off against Apple, Facebook and Amazon in a tech rumble that's promising to heat up this year.
Greg Bensinger has been writing about this for the Wall Street Journal and he joins us now.