looks interesting 5 chips   seems like it can be set to freq 450:390:370  which is 414 mhz and the standard number for the larger 4.1

this line of code is interesting

sudo ./cgminer --avalonm-freq 275:250:200 --avalonm-voltage 6250 -o http://stratum.pool:3333 -u  work -p pass


this may be under .45 watts per gh 

I am not sure:
A) what it costs
B) when it goes up for sale
C) if they will provide  an image for the rasp pi

I will check with www.ehash.com

 I would get this if it can run on a rasp pi and they give an image.
My home has 0 miners right now very lonely.
Still have  3 s-3's mining at my friends place at 2-3 cents a kwatt