I think the page turn number and the passage of time are totally unrelated. In typical techno-advertising-speak, if a machine were used to turn the page constantly, as fast as it could reset to press the button again, or if an electronic means were used to send image-change commands to the screen non-stop, a full battery charge would allow 7000 page turns, but that would happen probably within a couple of hours or days.
Then there is the separate and totally unrelated issue of the dissipation of charge that all rechargeable batteries have, which occurs over time. I have rechargeable AA batteries which can't hold their charge for more than a couple of weeks. To be able to lose only 1/4 of the charge of the battery in the Reader in a week is a very GOOD thing, not a bad thing.
So to expect that the 7000 page turns can be done over any length of time (gosh, some people don't read that many pages in a year!) while completely ignoring the fact that all rechargeable batteries lose their charges over time even when totally out of use is silly.
I would be happy if Sony would add a line to their advertising clarifying this point, something to the effect of "Recharge the Reader once a month and carry your library with you anywhere! Avid readers beware -- there is a 7000 page-turn limit per charge so voracious readers may have to charge more frequently than once a month."
But you would never expect total honesty in advertising, would you? Gosh, if we demanded that, most of the advertising copy writers would be out of a job, since they can't seem ever to tell the whole truth!
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