I bought the DR1000 just because I want to be able to read multi-column science pdf papers (which are often scanned images of the journal page). I find that the screen of the DR1000 is big enough to display them nicely.
The 6" screen were way too small and panning way too slow to make that feasible. THis won't help you with an 8" screen though, and I don't know of any applications that will help you with that. Let us know if you know some.
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