This document discusses trends in mobile device usage and how companies can engage mobile audiences. It notes that consumers now spend more time on mobile devices than PCs and that mobile internet usage exceeds PC usage. It then recommends ways for companies to access the mobile channel, such as through mobile-optimized websites, apps, email, messaging, and by collecting mobile numbers. The document suggests messaging will remain important for the next 5 years and discusses potential future developments in mobile messaging notifications through apps and messaging platforms.