The app does not need a wi fi connection. You do not need a SIM card that is suitable for that jurisdiction.
If there is a SYT carrier partner in that country then you need to only switch on Freeway, it will find the local carrier partners tower, fire up and you will have access to the apps on Freeway with billing managed by your exisiting mobile account.
You have however identified the issue with the product which is people do not understand just how easy it is and the potential to develop a whole subset of services around the world.
