Has anyone figured out how to get the power consumption down on these things? Apparently the voltage regulator for the core is meant to be adjustable.
You can always swap the resistor to drop the voltage instead of increase it. You'll likely have to lower the clock speed as well in order to compensate for the lower voltage.
You could also run them off Solar arrays to take them "off the grid"
SUPPOSEDLY Zeus is coming out with a lower power variant according to some banter on litecointalk forums.
:edit:meh...just looks like they are under volting and underclocking and adding more chips to make up for the difference in hashrate.