Do you have any idea how much extra data one of those SamKnows boxes uses every month? I've considered signing up as a volunteer, but I'm going to be forced onto a cap by Mediacom sooner or later (currently grandfathered in as unlimited) and might not have a huge amount of data to spare for testing.
(I suppose I could also just write a script to do it myself, but I'm still curious about SamKnows)