Previous v1.00.02 firmware already supports manually specifying a SSID and password under hotspot connection. I tried it once from the multi-storey carpark next to my apartment and when my smartphone hotspot was turned off, I heard the F800 Pro announced "connected to the internet". However, from inside the car possibly due to the glass as well as the short range of the F800 Pro WiFi, the signal was too weak to conduct further test. Just outside the car, I could connect to my Home Wifi from my smartphone. So I guess it will be a challenge to rely on external WiFi signal outside the car such as home or free WiFi option instead of using a mobile hotspot inside the car.
I believe they are referring to a mobile WiFi router with a data plan from the telco that remains switched on and connected 24/7 inside the car. I used to do that when I was running a Car PC as a head unit when Android was not in the market. However, with smartphone and its own data plan, I no longer need it but if the cloud capabilities develop further to justify use cases, I might put one back in. I'm only interested in parking impact notification and perhaps live view over the cloud when parked. So since the car will mostly be parked at home or in the city where I live with free WiFi coverage, I was hoping it will suffice but I now doubt so.