Cell Phone and Internet Help

We have smartphones (Samsung Gallaxy III - the IVs are now out) with large screens that act much like a computer's. We have a shared data plan with plenty of capability. We have 4 GB on our plan; we downsized from 6 when we found out we didn't need that much - depends on your usage without Wi-Fi. You can, of course, use them with or without Wi-Fi. We tie into Wi-Fi in places that have it (we bring along our computers too, for such situations, but we can still get on the internet when they don't with our phones (like federal/state campgrounds). As long as you're within distance of a cell phone tower, you're good to go. We have Verizon, which has a very comprehensive coverage range.