I have Sprint service and travel in and out of Sprint service all the time in this area (central Wisconsin), Tmo is even worse. On project Fi will I still have phone service in areas that don't have native Sprint/Tmo coverage? I tried signing up for in invite using a zip code for the area I work in most which has good Sprint LTE coverage but was told no invites in this area, need to wait until Project Fi goes national. Any ideas how many months until it goes national?