The iPod upgrades include two new Nano models, which are the thinnest iPods Apple has ever made. A $149 version comes with 8 gigabytes of memory; a 16-gigabyte version is $199. The Nano advances songs using the same motion sensor technology found in Apple's popular iPhone and plays a new song when you shake it.
Apple also introduced three new versions of the iPod Touch, which is much like an iPhone except that doesn't make calls. An 8-gigabyte version of the new model will sell for $229; a 16-gigabyte Touch will be $299 and a 32 GB model will be $399.
