[rcentros]

Any of the current Kobos would work (though WiFi — somewhere — would be necessary). Technically a Kindle would also work, but that would require using the Kindle's browser to check out books which can be "painful" (but possible). Tolinos and PocketBook's would also work, since they have built-in ADE (but, like the Kindle, they would require using the device's browser). The PocketBook's browser stays logged in, so it's a little easier to use than the Tolino or Kindle.