In Australia, ISPs sell the WiFi on your router. Similar to ZON
http://www.lifehacker.com.au/2014/05/telstras-new-wi-fi-netw...
The two major Belgian providers offer the same: Telenet only offer their own network, while Belgacom is a member of the international Fon network. I think both providers only offer the service to people with more expensive subscriptions, but I could be wrong about that.
Fon routers (company founded in 2005) also does that.
Same thing is starting to happen with most ISP's in the Netherlands :)
yup, UPC .nl user here, and I shared my router as a wifi spot, that said, I don't see to many oter public UPC wifi spots at least in the area where I am the most zaandam / de pijp amsterdam.
Same with BT in the UK.
That's cool!
You can turn this feature off if you want to, but in order to use it somewhere else, you need to have this feature turned on in your own router ;)