The BT WIFI/FON service was one of the reasons I switched to BT. I travel a lot for work and find it useful. I use an iphone and BT have released a small app which speeds of the process of connecting to a hotspot. It has widespread coverage because all new BT customers are opted in to the service when they receive their Home Hub 3 router, which automatically creates a BT FON hotspot. You don't have to use a BT router though if you don't want to share any bandwidth with strangers.
Forgot to add that you need to be a BT broadband customer to use the BT FON service for free.
Edited by chrigurndevon (Sat 09-Feb-13 09:52:01)