The Novac LP-IP002 iWalk Headphones for the Apple iPod nano ship from Japan. If wearing your iPod nano on a headset is cool or actually dorky is up for you to decide.

The iWalk is featuring a slot on one of the earpads which holds a generation 2 iPod nano. The advantage of the iWalk is that there is no chord dangling around.

A folding system makes it easy to carry the Novac iWalk around.
The headphone also comes with a 3.5mm audio cable, which allows you to connect the headset to other players as well. The Novac iWalk is available in black and white.
AudioCubes sells the iWalk for $79.