Latest price update:
$350 for 1 miner (4 boards) with 1 Rpi. 620GH/s. $0.56/GHs. 648W.
$640 for 2 miners (8 boards) with 1 Rpi. 1.2TH/s+. $0.53/GHs. 1296W.
Any plans for a more efficient design, similar to the improvements implemented in the asicminer prisma? Doubling the chip density could get ~600gh/450w per miner, and improvements like this are necessary with the rising difficulty. >1w/gh is no longer a good buy for most people paying >$0.10/kwh