On the same topic, will the h-boards be upgradable? Say in 4 months bitfury designs a chip rated at 5GHash, could they mount 16 of these to an h-board (or an h-board Ver.2) and successfully connect it to the 25G august kit/m-board/RPi alongside the first-gen H-boards? (ie: you have the 25G august kit, a few october 25G boards, and then add a *december 75G board* and run the total at 125G without issues)
of course, they may simply decide to produce the 25G H-boards much more cheaply to match the going market value, but I am mostly concerned in upgrading in the coming 1-2 years when the current 0.8w/GHash chips become 'insignificantly slow' or 'impractically power-demanding' and I do not want the $1000 RPi/M-board to be entirely obsolete