Just to followup from my original question: I ended up not getting a "mifi" "mobile access point"..... We had AT&T access at: Peter, Norman, Horizons base (Nanny Cay), almost to the Baths, all of JVD, Cane Garden Bay and West End.

I used my bullet H2 to pull wireless at: Marina Cay, multiple locations in North Sound, and Anegada.

So, in effect, I had access everywhere. So much different than the "phone booth to make a call" of the 90's.