title_body: Are there any rugged ebook readers out there?
upvoted_answer: Take a look at the earl, it is an android device with a 6” Flexible, sunlight viewable, E-ink screen (1024x758) with front light. It also comes with a solar panel, so you might want to put it on the outside of your pack (as long as you don't go hiking in the UK).
  
  It has not been released yet, but it should be available this summer (I certainly hope I have mine by then). Price starts at $299 if you pre-order (the crowd funding campaign is over). 
  
  Being Android based you should be able to install an ePub reader like the one from Graphilos Studio on it. At the bottom of the meetearl.com page it says ePub, MOBI and PDF are supported, but to me it is not clear if that software is pre-installed or isn't.