So, updates.

I have right now a couple sticks running on a modified cgminer which allows frequencies up to 300MHz (16.5GH per stick) pointed at the 1BURGER. The two sticks should be running 33GH total; Eligius as of right now reports a 3-hour average of 32.4GH so I'm okay with that.

My cooling setup is a single 120mm fan pulling 0.7A off 12V. With the hub I have, it should be enough to comfortably cool at least six or seven sticks. Assuming 2W for a Pi, 8W for the fan and 7W per stick for seven sticks, that would be 59W for 115GH or 0.51W/GH all in. Not too bad. The rest of my test parts arrived today which means I can build a few more sticks when I get some free time, if I want to push them more.

I'm busy this week with some consulting and manufacturing, but I'm hoping to do initial tests on the 18-board prototype on Thursday. I'm also hoping more than just Philipma1957 post information about the sticks in the review thread, since there should be at least six people besides myself who have final-version prototypes in hand. The sooner I get feedback on the design, the sooner I can decide whether to tweak further or open up a sales queue.

Amita PCB design has been started, probably 80% complete actually.

As of a few hours ago, my chips from Bitmain were in Kentucky awaiting some customs rigamarole.