American retail giant Target, a self-confessed long-time technology laggard, is now on a mission to catapult itself to the digital vanguard both inside and outside its shops. Top of its list: an in-store mobile phone navigation system that guides customers around cavernous floors using what could become the hottest information delivery vehicle in brick-and-mortar shopping since the barcode – lights. Lux has learned that a technology called visible light communication (VLC) is almost certainly a key component of what $73 billion Target is trumpeting as its new, customer friendly, transformative, 'mobile in-store experience'.