Quote:
Originally Posted by kennyc
The page turning is a feature which CAN be measured.
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Yes, although as usual it isn't as easy as it first seems. For many devices on the market we can now measure exactly the same ebook using exactly the same underlying software (mobile Adobe Digital Editions). For the Kindle we can use the same ebook in MOBI instead of ePub, or on the KDX we could use a PDF (remember, it is using mobile ADE for PDFs). However, the problem is that the Pocket Pro isn't slow if you repeatedly turn the page - it is slow (or slower) if you wait a few seconds between page turns. In this mode you can know a slow page turn when you see one but it is harder to measure page turn performance.
I think this is worth taking further. We put page turn speed on the
E-book Reader Matrix, but it isn't from a standardized test. The only numbers that have firm reports behind them that I know of are those from iRex, which reported on the page turn times on the DR1000S and the iLiad. It would be reasonable to assume that iRex quoted best case times, but they do correctly indicate that the iLiad has a slower page turn than most devices. A standardized test would probably have to be something like: turn the page 10 times as fast as possible, so it would not catch real-life performance but again best case performance.
Note that concentrating on page turn speed can also have unforeseen consequences. I have seen reports that the Kindle 2 has a fast page turn because it does not always do a "page invert" step. This gives fast page turns at the expense of more ghosting.