Hallo
I was thinking of possible ways to speed-up the growth of the open-sky network. Maybe one idea is to launch a "bring your friend into Open-Sky" program: launch a call for current open-sky members: each of us has to "recruit" at least one additional sensor host/location within the next 4 months. We could even offer a prize, to award the one that "brings" the highest number of new sensor locations, or the largest additional coverage area (on top of what is already covered by existing sensors).
ciao
fabio