Apart from the launch method - how is this going to be different from existing VSAT deployments? They're quite expensive (starting from ~thousand dollars per month):
http://www.melatnetworks.com/price-list.asp
Or those, with prices around 50usd/gb:
https://www.vsat-systems.com/service-offerings/VAR-VNO-Deale...
I doubt every Tesla will have one on board. LTE is so much cheaper.
Quite useful for medium and large marine vessels, or truly remote locations tho.