I see he has a potential to be a net celebrity by doing a live streaming show focusing on book reviews with a $100 smart phone.

Chinese Didi had it long ago...

Do you know who makes the bus level firewall? Do you mind sharing the manufacturer's name?

I'm sorry, I can't share the manufacturer or the firewall they're using. But I don't want to be unhelpful... I know that Bosch makes a CGW module that has firewall functionality:

http://www.bosch-mobility-solutions.com/en/products-and-serv...