So people don't have to dig through the other thread here are some posts from from Jeff that explain the coverage issue/question:
And this post from Jeff:.... The one item that I will address is the network that is being used by us [Boom! Mobile] through Big Red. There is multiple networks that Red allows others to use. I will list them out in order of least amount of coverage to most. The most common is the prepaid network (Tracfone, Selectel and VZW Prepapid) and then you have the postpaid network w/ extended area (Boom! Mobile) and lastly is the postpaid network w extended area and roaming outside of extended (VZW Postpaid). Through our migration we gave up a little to add some key features moving forward and those will be announced later today. I hope this sheds some light on the subject. Please know that Big Red drives most of our abilities and we choose to stay on the postpaid network with extended area because we want to set ourselves apart from our competition.
And this partial post from Jeff:I have already given you as much info as we have on roaming. The press release will deal with new items that are being released. We are using the postpaid network with extended coverage. All calls that don't fit into footprint will be considered roaming and we will not be able to process them. Big Red has many friendly roaming agreements that fit into the extended coverage area and then they have not very friendly roaming agreements. I have ask and been waiting on a coverage map to share but at this point we don't have one. All we know at this point is the footprint is bigger than prepaid and smaller than Big Red themselves.