I plan to buy a Kindle Paperwhite.
In all discussions so far about connecting the Kindle Paperwhite to Ubuntu, I have seen only answers/comments that suggest how to connect Kindle Fire to Ubuntu, and I have seen that Kindle Fire doesn't appear that Kindle Paperwhite uses MTP under firmware versions 5.3.1 or 5.3.3. So far I don't have a clear picture about whether data transfer is possible between Ubuntu 12.04 and Kindle Paperwhite.
I want to know
(i) Which firmware versions for sure use MTP, so that gMTP does the trick for me, so that I can select the right Kindle Paperwhite firmware version.
(ii) If there are none, then does there exist a universal solution for some/all the available firmware versions of Kindle available in the market.
I want to get this done without rooting.