SAN FRANCISCO, CA – JUNE 06: A Google employee works on a laptop before the start of a new conference about Google Maps on June 6, 2012 in San Francisco, California. Google announced new upgrades to Google maps including a feature to download maps and view offline, better 3D mapping and a backpack camera device called Trekker that will allow Street View to go offroad on hiking trails and places only accessible by foot. (Photo by Justin Sullivan/Getty Images)