I sure hope they can improve on that, or we're going to be looking at 1W/GH/s at the wall.
Nothing wrong with 1W/GH. Already better than most/all machines out there now.
0.56 W * 1.1 * 1.1 * 1.1 (this last one is to exaggerate it) = 0.74536W
Anyway this is at low speeds, the real world consumption should be higher.
We'll have to see. Actually looking at the numbers more, as presented they make no sense. There's no way the chip is hashing with a current draw of 0.14uA/MHz at any voltage. Tiny low power 8 bit microcontrollers don't get 0.14uA/MHz. Maybe they meant 0.14uA/Hz. That would at least be realistic, and would be say 140A @ 1GHz and 0.77V.