Here is a kit with everything you need to stay connected outdoors. The Bivy Stick allows for 2-way text messaging over the Global Iridium network. It has a dedicated SMS phone number and email address that you can use to communicate with friends and loved ones. With location share, you can share a breadcrumb of your GPS check-ins
This gadget allows you to switch between WiFi, cellular, and satellite networks. You also get a solar panel with 20% efficiency.
[where to get it]