Electronic Arts is well known for their marketing stunts, which have ranged from the somewhat offensive, if always amusing act of dressing up as hyper-religious protesters at a past E3 to protest the release of Dante's Inferno, to the cooler act of showcasing Battlefield 3 on mobile projectors (e.g. dudes carrying around battery-powered projectors) throughout Stockholm, Sweden.
EA has done it again with Battlefield 4, by hiring skywriters in planes to draw the number 4 in the sky yesterday afternoon to promote the game in four colors above the skies of Redwood City, California. According to a news snippet, the skywriting could be seen from as far away as "the Willow Market parking lot in Menlo Park."
Sadly, the photograph looks like it was taken with a potato held up by someone incapable of operating electronic devices.