Perhaps you are referring to the F-one ATW (all terrain wing).
Well, I did a Google search and found info on the F-one Mach 2, Magic, Slider, Shadow, AS-700, but almost nothing on the ATW.
F-one Germany lists only their selling price, but no other info:
http://www.f-one.de
Here are some F-one sites that don't mention the ATW at all:
http://www.kitesurf.com
http://www.f-one-usa.com
And here is an old email for Raphaźl Salles of F-one:
f.one@wanadoo.fr
That's all I can do. Hopefully some other PKF members know more about it.
My advice, however, is if you're looking for a tube kite, check out:
http://www.Cabrinhakites.com
BC