Having a survival pack makes sense, especially if you are going to be out in the elements. One thing to consider packing in your kit is the Eton Scorpion. This splash proof, drop resistant unit even attaches itself with a built in aluminum carabiner.
What does the Scorpion offer? In its handy package you will find a USB charger, AM/FM/NOAA radio, and of course an LED flashlight. The Scorpion provides its power from either manual cranking or built-in solar cells. Now all you need is a cell phone and you have a powered connection back to safety.
Well, assuming that you are within reach of a tower. If not, perhaps you can at least install an ebook reader and have something to read around the campfire while the search crews are busy.