The 4th Generation iPod nanos: Bold Colors, Rockin' Features
Apple's 4th generation iPod nanos are available in a rainbow of colors as well as 8 GB and 16 GB capacities. The nanos feature a built-in accelerometer, so you can rotate the screen to watch videos in widescreen, and you can shake your nano to switch songs. Plus, they feature the Genius playlist tool that finds songs in your music library that go great together.