If it uses FPGA and can be utilised as a compute board as well as a GPU this will be picked up by crypto miners all over.
We might see more efficient mining clients if the board truly does end up being open.
I suspect some proprietary chips will creep in somewhere.
Afterall the Raspberry Pi was intended to be open source but it has proprietary chips on it. The broadcom GPU still has fairly naff drivers.
Didnt the raspberry pi foundation run a competition at some point to get Quake 3 running on the board at over 30fps?