The biggest issue is that you need data for the maps, unless you plan ahead and download them off line. Check out TMobile's 25$ a month just Text and Calling s

The biggest issue is that you need data for the maps, unless you plan ahead and download them off line. Check out TMobile's 25$ a month just Text and Calling service that came out fairly recently. I am looking for the same thing as you, but unfortunately have used a ton of software to replicate it. I wish phone companies would go back to simple =(