Check for the latest versionThe latest version of iPhone firmware is different for the three hardware versions. The iPhone 3 is using version 3.2.0. The newest version for the iPhone 3Gs and iPhone 4 is 4.0.1. Select Settings | General | About to determine what version your iPhone is using.
Selena has been at TechRepublic since 2002. She is currently a Senior Editor with a background in technical writing, editing, and research. She edits Data Center, Linux and Open Source, Apple in the Enterprise, The Enterprise Cloud, Web Designer, and IT Security blogs.