If you’ve just purchased a fifth-generation iPod nano, here’s a little tip in advance of our full review: check the software version. This can be done by plugging the device into iTunes and viewing it in the Devices column, or by going into the nano’s own Settings > About menu, then clicking twice on the center Action button. For whatever reason, some of the fifth-generation nanos we’re currently in the process of testing have shipped with software version 1.0, while others have shipped with a newer version 1.0.1. Apple’s release notes curiously say only that version 1.0.1 of the software supersedes all previous versions, and provides support for the fifth-generation iPod nano. If your iPod nano shipped with version 1.0 software, and you want whatever benefits are hidden in the update, version 1.0.1 is available from iTunes for immediate download.