Tom has also claimed to have a working prototype working so I would assume that their power estimates should be pretty concrete. But what do I know, I'm just a miner.
Prototypes are never accurate. I don't think an ASIC prototype would initially aim for power efficiency.
But yes, keep dreaming is strong words, but they appear to be based on BFL estimating via software.
I look forward to a charity receiving some $.
In fact I would like to nominate my home town, which I had to leave after we had some severe earthquakes that destroyed the city.
http://christchurchappealtrust.org.nz/
This charity was set up by the New Zealand Prime Minister.
Much of the CBD buildings lost there frontages. My home was fine, my parents lost theirs and had to live with me for 3 months. FEEL MY PAIN!
There is a US-NZ tax free way to donate through the US.
http://www.americanfriendsofchristchurch.org/ways-to-give.html
The EQ destroyed the city, and liquefaction (due to city being built on a swamp..duh) destroyed the eastern suburbs. Most frightening thing ever in my life. I helped set up the temporary civil defence communications at my workplace during the quakes, but 5 months later I met a lady in another city (due to there being nothing to do in Chch anymore) and moved to be with her.
The CBD now looks like a vacant lot.