Fast food restaurant chain Subway recently utilized mobile marketing in an integrated campaign promoting its new breakfast sandwich menu. The campaign featured traditional media like TV, radio and print alongside mobile including a mobile website, app and SMS. The ‘Wake Up Call’ app encouraged users to set a fun wake up call reminding them to visit Subway for breakfast. The promotion generated 20,000 requests, 6,000 calls and over 800 opt in’s to future SMS marketing messages. The Subway promotion follows other fast food retailer's mobile efforts in 2010, we posted earlier this month about KFC's mobile promotion.