One day it would be nice to not have large chunks of the country not covered by good cell service. Since this service can make calls over WiFi that would remedy some of the situations I have been in where I had WiFi at a campground or similar but cell was spotty or non existent. Granted making a call over the WiFi provided at some camps might not be all the possible.

edit, another area I found little to no cell service was the turnpikes through Virgina and West Virgina.