Numbers out of thin air for FPGA route - I'd expect 300 MH/s X11 algo board with 6 Spartan 6 LX150 chips to be developed in half of year with 50000 USD development cost, production price would be something like 2000 USD per board. (Anyone with actual field knowledge is welcome to correct me!)
would it be possible in one or two month time ? (the X11 didn't really start before that)