I have tried taking along powdered egg from the whole foods store and cooking it, never have been successfull in getting it to taste good or feel right in the mouth.  Apparently this item is just for adding to recipies, which does work fine in my experience.  I do not mind the omelet instant camping breakfasts from Backpacker Pantry or Mt. House.  What do you suppose is the difference in the eggs???  Can one find these "campfire" eggs somewhere, in bulk? What are they called?
I have also tried egg beaters, easy to carry, and do last about a week with no problem and not much worry about keeping cool.  They work best as an extender for regular eggs, not too wild about them on their own merits.
I usually take a dozen regular eggs in a plastic egg holder made for camping.  With care the eggs stay whole by placing on top of the pack or separately in the canoe/kayak during travel.  I check them every day to make sure to use any which might have been broken recently.  I always put the egg holder into a double wrapping of zip-lock bags, then if they break, they do not make a mess of the rest of the food pack.  Anybody with thoughts on where to buy bulk, better tasting, better cooking, powdered egg??   ???