Sort of off topic, but somewhat related....I've noticed a definite trend with Amazon devices to make the Personal Documents viewing LESS robust. They are limiting the things you can Whispersync, purposely limiting format options, purposely limiting features like X-Ray and page numbers, etc. IMO this is a not so subtle way of saying to customers that if you want the full feature set you have to read OUR books. You can read Personal Documents but we will take away a lot of features from them. This really pisses me off as I buy 98% of my books through Amazon, but then modify them so I can read them better. I modify them because Amazon is too GD stubborn to give us more font control. I cannot read their crappy thin fonts without eyestrain. So to fix the thin fonts I modify the Books and then they automatically get downgraded to Personal Documents, and thus I lose all the frigging features I effing paid for.