Very cool little device.
Do you have a Git we can submit PRs to? I changed the display from "Million"/"Billion"/"Trillion" to "Mega"/"Giga"/"Tera" and could make that an option if others want.
I was wondering myself how to change the display to read the Avg or the 15min cgminer hashrate.
Also a Shutdown Button/Option on the gui may be useful if anyone wants to do maintenance on the sticks/terminus’. Saves potential corruption of the SD card.