The Lawson convenience store chain provides free wi-fi that works fine with an iPhone. You have to get a member's card from one of their stores and register it on a terminal in the store, then you need to have their app installed and you will need to run the app when connecting. Once it is all set up it is very effortless to connect. I don't know if it can be made to work with a PC, but I doubt it. Perhaps it can through a tethered iPhone 5.