Did anyone use the BRCK from Ushahidi? I think it had some similar goals and features. It would be interesting to compare these and see how Facebook have advanced the state-of-the-art.
BRCK == A rugged WiFi hotspot that uses cellular data as a back haul to provide WiFi connectivity up to 20 devices
Facebook TIP == A base station that provides LTE connectivity to handsets.
So with Facebook device, you'll be able to set up your own LTE network and be a mobile operator whereas BRCK has no such capability.