The document discusses the opportunities for marketers in mobile app advertising. It begins by debunking 5 myths: 1) audiences only use iPhones/iPads, 2) only smartphones users enjoy apps, 3) mobile only offers small banner ads, 4) mobile internet users are the same as PC users, and 5) mobile usage patterns are the same as PC. It then provides examples of how app advertising can be used to engage youth audiences, reach tech-savvy influencers, and maximize app distribution. Additional opportunities discussed include location-based targeting for retail brands and creating "wow" experiences through premium app placements.