Excerpt: Understand the iPhone backup

During a sync, iTunes not only syncs managed information and media, but also creates or updates an iPhone backup. The main function of the backup is to permit you to restore personal data and settings to your iPhone during a Restore. In this excerpt from Take Control of iPhone OS 3, Ted Landau takes a closer look at the process of backing up and restoring your iPhone's data.

Modifying iPhone carrier settings

There's more you can do with your iPhone's carrier settings than just download and install the latest update. Ted Landau shows you how to custom reinstall, directly view and even modify your carrier settings -- and explains why you would want to.

Bugs & Fixes: iPhones that are too hot to handle

The Internet is buzzing about reports of iPhone 3GS models over-heating. But before you assume you need a replacement iPhone or that Apple needs to issue a recall, Ted Landau suggests that you cool down.