Seems whomever ordered any of these kits August or October delivery threw money into a black hole.
Sadly you're right, same here on the other side of the pond.
It is true that August kits can be overclocked massively, so a 400 GH/s full kit is able to mine at around 550-580 GH/s, but even at 580 it won't repay itself and KnC seems to be on the right track to deliver, which will make things even worse.
It's really sad, since these units are wonderfull, 500 GHs in such a small form, with so little energy use... but waaay overpriced.
spiccioli