My test implementation without any optimization got 180Mhash/s according to the Xilinx ISE tool.
2) How our current solution compares to existing ones:
http://www.dinigroup.com/new/DNBFC_S12_PCIe.php
3) How much does Virtex 7 cost ?
"The Virtex-7 2000T the 2 million logic cell will begin initial sampling in August and November of 2011"
Is it possible to receive samples ? (somehow we already miss these intervals, but it is still possible to try to obtain samples)
Is it possible to get promotional discounts for it?
For the comparison, the price of SPARTAN 6 is
I think you should target the Xilinx spartan 6, LX150(T) : XC6SLX150-2FGG484C
Costs about 170$ at digikey for one, but I've heard 120$ with some volume.
Costs about 170$ at digikey for one, but I've heard 120$ with some volume.
I am asking, because it uses 28 nm technology, which is more modern that 45 nm in Spartan 6
What will be it's approximate hash rate?
Next year it seems the Artix-7 series will give us the most "bang for the buck".
"Artix-7 FPGA initial samples will ship first quarter of 2012."5) The same question about Kintex-7
It was already shipped: http://www.eetimes.com/electronics-products/electronic-product-reviews/fpga-pld-products/4214345/Xilinx-ships-first-28nm-Kintex-7-FPGAs
It's still the weekend here in California, after all. I don't really like automating things when real money is involved, just because screwups can get expensive. Also, a little variability in the dividend payment helps to encourage long term investment, I think. 
