From another thread:
How much hash rate do 1 share own? I'm not quite clear.
Thanks!
Currently:
18 TH/s or 45 MH/s per share.
On hand they have a total of 61.4 TH/s, or 153.5 MH/s
They have an additional 200TH/s ordered, so 653.5 MH/s.
They also have an additional 10,000 USB miners ordered that will be on sale at 2 BTC each.
They also have contracts for ordering even more hash power, an unlimited number. They are currently designing more advanced chips as well as doing sales.