Wifi is everywhere...Timmy Hos', MickieDees, many food stores. I might suggest getting a USB type plug in antenna. Boosts the available signals and allows you to access the wifi from your rv.
Poncho..and any other CDN's heading south. I bought a T-Mobile phone and card at Wal-Mart this past spring. $50.00 a month for unlimited International talk and text. The coverage was spotty, but I still had it when I decided I needed it to call home.
I am more of a free wifi fan, but we had renovations going on and I needed to be reachable easily.
Gary Haupt