Book excerpt: Here is the essential companion to the iPod touch and iTunes 9. In addition to the iPod music player this multi-faceted device includes wi-fi access to the Internet and email as well as the App store and over 85,000 apps. Keeping pace with all these features and functions, The iPod Touch Pocket Guide breaks it all down into manageable chunks that will have new iPod touch users reaping all the benefits of their devices.