Ride hailing services like Uber, Ola are offering Free In-Car WiFi to their Taxis in India this works by sharing mobile data from the drivers smartphone via WiFi hotspot. Though this is inline with this need gap at a broader level, it still uses mobile data as a source for Internet and not fixed line broadband as found in houses and offices.
But this definitely is one of the few cases where WiFi sharing is being implemented at scale today. If you are a frequent user of their services in India, do you switch off your mobile data to the drivers WiFi? I tried once or twice during the launch, had some issues connecting and didn't bother with them in the future due to security concerns.
Security is one of the pain points which needs to be addressed in solving this need gap.