In late may 2013 the difficulty was 12,153,412 meaning the network hashrate was approx. 87TH/s.  What I saw in the office there was capable of running at a minimum 5TH/s and that was what was sitting in the office.  Some plugged in, some getting boxed up, and some being assembled.  I find it hard to believe that was the only hardware they had readily available.

This would put them at 207 BTC per day if there was no additional hardware at all off site.  I saw a few other things I didn't like as well...