Mining Litecoin after power costs will lose you over $4 a day.
And due to more difficulty that amount rises each day...
I still don't understand how it's possible that people are still mining coins, even with free power, you would make more money working at McDonalds than spending time on mining....
Even if you had your Vipers and they actually ran to spec, the 250Mh/s unit would be earning a whopping $8.17 after paying $4.50 for power (assuming 0.10 per KWH). Calculating a 10% increase in difficulty each month means you have no hope of ever seeing a return on your investment. Besides, these numbers are assuming you have the units in hand. After waiting another 6 months for them to run out of excuses and finally ship their product, they will essentially be worthless.