This document discusses how smartphones can be used to sync information, communicate, and access files across multiple devices. It outlines various syncing services like MobileMe, Google Sync, and My Phone that allow syncing of contacts, calendars, and other data between devices. Communication options on smartphones include phone calls, texting, emailing, using social media like Twitter and Facebook. The document also discusses using mobile websites, Google Docs, and Dropbox to access and sync files between a smartphone and other devices.