USB drive for Express console?

I just found this USB drive to replace the floppy drive in the Express:

http://www.ebay.com/itm/230859349381;jsessionid=08354BC5E69E5743F5CDE3A6BD5A0BBD?ru=http%3A%2F%2Fwww.ebay.com%2Fsch%2Fi.html%3F_sacat%3D0%26_from%3DR40%26_nkw%3D230859349381%26_rdc%3D1

As I've heard previously that USB for the Express is impossible, does anyone have any experience doing this, ie does it actually work in this application?