There are other e-readers that have far less stringent requirements for getting books. The Nook and Kobo are an example (as are the Sony E-Readers). I have a Nook and have yet to purchase any books from the Barnes and Noble store. I constantly put DRM free books from Project Gutenberg on it and just placed the Less Wrong sequences on it as well. There are also FLOSS programs for editing PDFs to make them easier to read on an e-reader. A little research goes a long way!