Korean Air Skypass - Korean Air unveils A380 flying duty-free shop

Korean Air is to become the first airline in the world to offer a flying duty free shop when its first of 10 Airbus A380s enters service on 10 June.

http://www.flightglobal.com/articles/2011/04/05/355131/interiors-video-korean-air-unveils-a380-flying-duty-free-shop.html

Definitely tailored to Korean passengers, who love duty free, and certainly innovative. I wonder if it will result in a significant enough increase in sales to recoup the revenue from the 13 lost seats. If it will work on any carrier, Korean may be it.