iPhone waterfall Atlanta billboardsBeautiful photos adorn billboards in more than 25 countries thanks to Apple’s quest to create the “largest mobile gallery in history.” And the world is taking notice…the campaign won Apple and their agency, TBWA/Media Art Lab a Grand Prix prize in Cannes, France. The photos came from 162 iPhone users and all were taken with an iPhone. The photos are on more than 10,000 billboards in 73 cities. This is the pair’s second win in 3 years. Apple and TBWA also won a Grand Prix prize in 2013 for a campaign on the backs of magazines that showed ads the size of an iPad.