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On the batteries, there is user-replaceable by design, and then user-replaceable with various degrees of effort, asymptotically approaching impossible. IOW, you can replace the battery on most readers if you REALLY want to.
Some of your criteria are false.
Kindle does have categories for organization.
SOME tablets are lighter than some ereaders.
(Though I demand eink as well.)
Some of your other criteria, are, IMNSHO, rather biased and arbitrary, so it's hard to rationally address them. For example, while Amazon's format is technically 'proprietary' it forces no additional 'reliance' on anything or anyone in any practical way.
Last edited by ApK; 09-04-2013 at 10:33 AM.
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