I always have a huge ebook selection and a number of audiobooks loaded on my Droid-X. Keep a spare phone battery in the truck, a number of rechargeable AA batteries, a solar charger, an AA battery phone charger, a 110 AC powered charger, an inverter, 2 USB drivers stuffed with more ebooks, media, movies, and TV shows, and a small netbook with humongous battery life to transfer files from drives to phone if needed. I also have a wife who can remind me every couple of minutes how its all my fault - so I think I'm covered in the entertainment department.