The new iPod nano with Multi-Touch

Adding a multitouch interface to the Nano is probably the biggest change, a development that let Apple designers take the device to half the size and weight of the previous generation. You'll have to rely on multitouch, because Apple did away with the click-wheel folks used to use to access songs, artists, albums and playlists.

There's no home button as there is on the iPhone. Instead, you hold down your finger against the display to return to the Home screen.

Apple also added a clip that lets you wear the Nano on a pocket or lapel, just like on the Shuffle. It also has an FM radio. An 8-GB Nano costs $149. A 16-GB model is $179.