Apple unveiled today a new iPod nano featuring a tall and very thin oval shaped design.
The new iPod nano 4G features an accelerometer sensor like the iPhone and a new advanced user interface.

The new iPod nano 4G starts shipping this week from the Apple Store.

Overall the iPod nano 4G looks like a great little music and video player with some nice features and UI tricks like shaking for shuffle mode.
Measurements of the iPod nano 4G are 3.6x1.5x0.24inches and the weight is 1.3 ounces.
The battery life is up to 24 hours when fully charged and the video playback time is up to 4 hours when fully charged.

The iPod nano 4G comes in 8GB ($149) and 16GB ($199) storage configurations and in 9 colors.