[jimmini]

We have been using a ATT aircard for going on 2 years now along with ATT cell phone.Our aircard is UNLIMITED time, never have been charged over $59.I use it about 100 to 150 hr per month.
The system works ok if your cell phone works,but in Arizona there are many areas that have NO cell phone coverage and this is true with parts of Nevada and Utah.Out here some times Verizon works when ATT does not and some time ATT work when Verizon does not,so take your pick.
In some areas the down load time get very slow like a land line during peak use time.I use my same aircard on my PC at home and lap top when I travle it is my only internet connection.
I have looked at Data Storm satellite but to many $$$$ and work to set up.But does work in more areas if you can aline with satellite.But deep canyons and trees here do not make it 100%.