They posted under the XBox360-version as an answer to some questions, that 266 TE exist! Also they say that the edition was approved and partially produced by Deep Silver(Polo-Shirt, Postcards, Poster).The other things were produced by them(G4G) officially ordered by Deep Silver. There have no more boxes been produced, but after the first negative previews a lot have been cancelled. Thats why they had some boxes available!
Pipboy is a member of the team and he posted in the comments at the bottom of this page:
http://www.game4game.at/shop/catalog...oducts_id=6656