Terrahash has changed its refund policy. The company's FAQ has been updated to say that all orders are final.
The first of Butterfly Lab's BitForce 500 GH/s has been seen in operation.
ASIC mining firm TerraHash is taking preorders on its site to fund more chip purchases from Avalon. The firm lost its biggest contract earlier this month.
Avalon, a maker of bitcoin ASICs, has been accused, on the Bitcoin Forum, of mining with its products to mine BTC before shipping to customers
Butterfly Labs has announced it will begin selling bulk ASIC chips for bitcoin mining starting this month.
Butterfly Labs is shipping some ASIC mining rigs to users - but how many can it deliver, and how quickly?
Californian firm TerraHash is promising customers huge mining rigs using Avalon ASIC chips from designer BitSuncom.