I am planning to take a family trip to a cabin on a Minnesota lake that has no cell phone service. Will the Jetpack allow us to get Internet connection to be able to use wifi for checking e-mail, social networking, and so forth?
The jetpack needs a cellular connection. It connects by wifi to your devices, but then must send out to the Internet -- it does that through a cellular connection. Therefore, a jetpack will not work in an area with no cell connection.
If you truly need Internet and there is no land lines or cell coverage, your only option is going to be satellite.