Without a good solar charger or battery backup for your iPhone or iPad, you won't get a whole lot of use, but if you have an emergency that requires you to figure out something that could be in the Army Survival Guide, having a PDF file of it on your mobile device could be a real life saver.

I also suggest a small PDF with all sorts of personal info you might need. That lets you print it out in a hurry, instead of having to print a bunch of separate address book entries and such. Consider including latitude and longitude of places you might want to go and other, less normal info you might need if things go seriously bad.

I'm sure there are ways to get PDFs onto an Android or Blackberry, but I'm also sure it isn't as simple as it is if you have an i-device. For those, check out these really easy instructions.

Technorati Tags: Apple, iPhone, Survival, Tech