True. I'm trying to figure out the best way forward for hash/watt then invest in of a bunch of them. Also I am designing a cryogenic case (immersion in liquid nitrogen) so I need to have picked out the best board to use first.
When I do I will open source the case design and also sell the cases. I was thinking mini-itx with intel atom but if android is this good and also lower power I will go that route and mabye put 3 odroids per case.