Advertising agencies 'failing to take advantage of smartphones' Leading publishers have blamed advertising agencies for failing to capitalise on the smartphone boom. Just days after Apple's new iPhone5 hit stores, the Association of Online Publishers warned: "While more people than ever are consuming content on their smartphones and tablets, ad revenues are not migrating to those devices at the same rate." A survey of AOP members, which include most of Britain's major newspaper, TV, magazine and radio groups, found that 55 per cent believe that ad agencies' negative attitude "would hold back mobile revenue growth next year."