Here is a build_bfgminer.sh script for Debian Linux that works rather well. Add any build arguments in after ./configure to customize it.

sudo rm -rfv ~/bfgminer/bfgminer
cd  ~/
sudo apt-get install git build-essential autoconf automake libtool pkg-config libcurl4-gnutls-dev libjansson-dev uthash-dev libncursesw5-dev libudev-dev libusb-1.0-0-dev libevent-dev libmicrohttpd-dev uthash-dev
git clone https://github.com/luke-jr/bfgminer.git ~/bfgminer
git clone https://github.com/signal11/hidapi ~/bfgminer/hidapi
cd ~/bfgminer/hidapi
sudo ./bootstrap
sudo ./configure  --prefix=/usr
sudo make
sudo make install
cd ~/bfgminer
sudo ./autogen.sh
sudo ./configure
make
sudo chmod +x bfgminer

Any tips or tricks to compile the Icarus support for V3.10.0? Every time I try to compile bfgminer with Icarus support in Debian it fails to build in with the default options. After when I run ./bfgminer Icarus errors out like it's missing or something. I was just wondering if I'm doing something wrong? I have read all the readme files.

Very nice! I'm still waiting on my other two then I'll upload a shot or two.
Also, can I use any old capacitor on these? I have a bag of 2200µF 25V ones I'm not using, or would that be overkill and possibly fry things?

Yeah, at about 2.2 they get all wonky unless you add a 10K resistor (0.88V). 2.0 should be stable though. You could even add the 2.49K for a full volt but I wouldn't recommend going any higher because the wattage will blow the aoz1021ai.

So how do I set a non default clock rate for an Antminer U1 with Cgminer? For example overclocking from 0781 to 0A81? in Bfgminer I would use this:
bfgminer -o http://your.stratum.server:port/ -u worker.name -p password -S antminer:all --icarus-options 115200:2:2 --set-device antiminer:clock=x0781 --no-submit-stale

In AntMain's version of Cgminer they use this:
cgminer -o stratum+tcp://your.stratum.server:port/ -u worker.name -p password --bmsc-options 115200:20 --bmsc-freq 0781 --no-submit-stale

How do I set a clock rate with Cgminer 3.12.0?

Antminer's custom version of cgminer works with the folowing:
cgminer -o stratum+tcp://your.pool.here:port/ -u worker.name -p password --bmsc-options 115200:20 --bmsc-freq 0781 --no-submit-stale

Bfgminer works in a similar fashion but has some hidden extra stuff for serial devices just like the old block erupters. Also if you overclock the Antminer it wont read much higher than 2.0Gh/s in the output without --icarus-options 115200:2:2 because it is a serial device. For example if you set the clock to 0A81 it will still read around 2.0Gh/s instead of the 2.2Gh/s it is supposed to. This holds true for higher clocks as well.

Bfgminer's config would look like the folowing:
bfgminer -o http://your.pool.here:port/ -u worker.name -p password -S antminer:all --icarus-options 115200:2:2 --set-device antiminer:clock=x0781  --no-submit-stale

from Bfgminer 3.10.0 README.ASIC.txt

BLOCK ERUPTER USB
-----------------

These will autodetect if supported by the device; otherwise, you need to use
the '--scan-serial erupter:' option to tell BFGMiner what device to
probe; if you know you have no other serial devices, or only ones that can
tolerate garbage, you can use '--scan-serial erupter:all' to probe all serial
ports. They communicate with the Icarus protocol, which has some additional
options in README.FPGA


from Bfgminer 3.10.0 README.FPGA.txt
Icarus (ICA)
------------

There are two hidden options in BFGMiner when Icarus support is compiled in:

--icarus-options Set specific FPGA board configurations - one set of values for all or comma separated
           baud:work_division:fpga_count:quirks

           baud           The Serial/USB baud rate - 115200 or 57600 only - default 115200
           work_division  The fraction of work divided up for each FPGA chip - 1, 2, 4 or 8
                          e.g. 2 means each FPGA does half the nonce range - default 2
           fpga_count     The actual number of FPGA working - this would normally be the same
                          as work_division - range is from 1 up to 'work_division'
                          It defaults to the value of work_division - or 2 if you don't specify
                          work_division
           quirks         List of quirks to enable and disable (after a minus sign):
                            r  Reopen device regularly to workaround buggy Icarus USB chipset
                               (enabled by default)

If you define fewer comma separated values than Icarus devices, the last values
will be used for all extra devices.

An example would be: --icarus-options 57600:2:1:-r
This would mean: use 57600 baud, the FPGA board divides the work in half however
only 1 FPGA actually runs on the board, and don't reopen the device (e.g. like
an early CM1 Icarus copy bitstream).

Just don't use the --icarus-timing that's for old block eruptors and Icarus boards.

You need this --icarus-options 115200:2:2 for the serial to report the clocks right.

I have filed a ticket as well. It looks like the problem is that the Amazon EC2 server itself is located in Tokyo, Japan. This would explain a lot. I'm loosing hashes to horrible, horrible latency. Any word on a US deployed Amazon EC2 server? I'd hate to have to switch pools because of lag...

Is it just me or is the hash rate from the server way down? Is this due to the DDOS and move to Amazon's EC2? It's about 25% slower than it should be. Is this being addressed? Also the latency is really high. I'm using Bfgminer. Are there any tweaks I should be making to the command line like a higher or lower queue length that will help? I'm already using these switches --no-submit-stale and the --queue (or -Q) is 1 by default.
 

bfgminer -o http://your.pools.stratum.com -u yourworkername -p yourpassword -S antminer:all --icarus-options 115200:2:2 --set-device antiminer:clock=x0781 --no-opencl-binaries --no-submit-stale

Works about the best if you want a few extra Gh/s out of your pool! What really helped out was the --icarus-options 115200:1:1, --no-opencl-binaries and --no-submit-stale commands. Anyone have any other commands to add to that to bump the pools Gh/s rate with Bfgminer? I changed the clock to the default 1.6 in the example above from what I use so that no one accidentally fries their miner playing around. Also for 2.2Gh/s to show properly you need to set the --icarus-options 115200:1:1 even though this thing isn't an Icarus for your serial port. I tried the --icarus-timing long=20 (timeout in deciseconds) which should have been similar to the Antminer Cgminer --bmsc-options 115200:20 option but it incorrectly displayed my Gh/s rate. I think it was for setting Mh/s on old Icarus devices which conflicts with the --set-device antiminer:clock=x0781 setting. Either that or I hit 4 Gh/s with my --set-device antiminer:clock=x0981 (2.2) because I'm that awesome at overclocking.

Sweet! I had to order some resistors that are in the 1% range for that package size. Case Style:0603 [1608 Metric]. It looks like 1/10W or 100mW 50V like the other 10K 103 SMD resistor on the board. I ordered YAGEO RC0603FR-1010KL (10K) and RC0603FR-072K49L (2.49K) if anyone needs part numbers to go off of. The only other ones I saw were 1/25W 25V which probably would have been fine. The AOZ1021 is only rated to 16V. Also I'm guessing these are in spec? I'm no electronics major but I can read a diagram.

Nice! How did you get there? Details?!?

Ahh, thanks! I was looking at the schematic for the aoz1021 and it looks like there are two 22µF caps on the board. One on the input side and another on the output. I'll have to see if I have some caps laying around. Putting one inline like that should stabilize the power from the usb. I'm getting a stable 2.0 Gh/s with the stock resistor. I grabbed an old P4 heatsink and a 12V 500mAh transformer and wired it up to the fan to setup active cooling, then mounted the Antminer to the CPU side with some thermal tape. I should be able to mount four of them onto the sink. I can run at 2.2Gh/s right now but the clock fluctuates wildly. No hardware errors in Bfgminer 3.10.0 though. The temp is good at 32.23°C/90°F (20°C/68°F ambient) measured at the hottest point which is the edge of Antminer sink where the thermal pad is. That's a 50Mhz overclock above the stock 200Mhz just buy adding cooling which isn't too shabby. At this point it needs more voltage and a capacitor. I'm going to just add the 10K resistor and cap first which should give 0.88V and see how hard I can push it then I'm going to swap out the 1K for a 2.49K and go for the full volt. I think less voltage is more in this case. Voltage=Heat and Heat=Bad. It looks like 4.0Gh/s will require some LN2. That's a 250% Overclock at 500Mhz and as such is unrealistic.

http://i1211.photobucket.com/albums/cc431/twindragon6/DSCF7357_zpsc964b66e.jpg

These help on the back of the chips. Also where did you solder the cap? It's hard to make out in the image.

http://www.frozencpu.com/products/14952/vid-178/ModMyToys_Solid_Copper_Passive_Micro-Heatsink_-_8mm_x_8mm_x_8mm_Pack_of_4_-_Nickel_Plated-MMT-HS-8X8-CU-NK.html