I welcome anyone who can actually ship product!
That said, am I getting my math wrong or is the $500 per chip, capable of 20GH/s to 40GH/s, a might bit more expansive than the BitFurys at 2GH/s for $25? If BitFury was double cost, it could be equivalent to these and you already have an IC for them? Yes, you could order a larger quantity and get it down to $4.50/GH/s but that still leaves alot of room for the BitFury's to cost more and still be cost effective.
I don't remember the the GH/W of the BitFury's though, and that's the dominating cost if you mine for awhile. I think the BitFury's were around 2W/chip? Which would make them 1W/GH right? These claim somewhere between 0.6 W/GH to 1 W/GH (unless you undervolt them). So I guess these would win out should you keep them mining for long enough.