Very good.  Here is another link (distribution of 141 orders)  https://bitcointalk.org/index.php?topic=249065.0.  It works out to 495 GH/s per order which I will round up to 500 GH/s.  I don't think 11 business days in Oct means they will ship 800 units per day everyday.  They simply closed the Oct window when they announced lowered Nov prices so I think we can discount that 10% or so.  If we figure a conservative 4,000 orders @ 0.5 TH/s per order = 2,000 TH/s.  I have a high confidence in 2 TH/s it may be more but I will update it to that for now.