Apple today introduced the fourth-generation iPod nano. Touted by Apple as the thinnest iPod ever made, the new nano sports a curved aluminum design with curved glass, and looks very similar to previous reports. In addition to the new form factor, the new iPod nano features an accelerometer that allows the user to shake the device to enter shuffle mode.

A new user interface also appears on the device, offering Genius playlist creation right from the nano, a Cover Flow mode that appears when the device is in landscape orientation, a built-in voice recording app, album art that appears at the bottom as the user scrolls through the traditional interface, and battery life of 24 hours for music and 4 hours for video. The new iPod nano will be available in nine colors — silver, purple, blue, green, yellow, orange, red, black and pink, and will be priced at $149 for the 8GB model and $199 for the new 16GB model.
“The iPod nano is the world’s most popular music player and we’ve made it even better for this holiday season,” said Steve Jobs, Apple’s CEO.
“We think users are going to love the amazing new design, the automatic Genius playlist creation, as well as automatically going into Cover Flow with just a turn of the wrist.”
Apple also announced new accessories for the iPod nano. New standard headphones will offer in-line play, pause, track skip, and volume control, plus a microphone to work with the nano’s built-in voice recording app. They will be available in October for $29.