Memoware has the Army Field Manual in iSilo format. Palmgear has a few items as well.<br><br>I've carried a Palm Vx in the metal-plated case for 2 years. It's been through hundreds of airport x-rays, numerous drops and bumps on various surfaces and I haven't had any broken parts (except for the buttons wearing out due to heavy use). The real problem is running out of power. I've actually used the backlight as an emergency light source in the woods, so it can come in handy in weird situations, but I wouldn't consider it a major survival tool by any means.