ASUS GeForce GTX 680 for Pre-Order in USA

Last week, a Dutch store solicited pre-orders of ZOTAC GeForce GTX 680 for a brief period, before redacting the sale page. It was priced at 507.18€ (incl. taxes). US retailer Bottom Line Telecommunications, listed ASUS GeForce GTX 680 on its online store (shopBLT). Carrying the part number GTX680-2GD5, this card is priced at US $566.75. The part that makes this a pre-order is that the sale page mentions that "You may order this product regardless of availability," it would be shipped as soon as it's available (after it's launched, of course). The page doesn't tell us anything about the GTX 680 that we don't already know.