The biggest turnback for me when going from printed books to e-readers is that the latter only can show one page when a printed book can show both left and right at once. I guess this will be addressed in future evolution of e-readers, but for now one page at once is a bitter fact.
So here's the simple and silly idea: Use two e-readers and sync them so one file can be displayed on both units at once - one of them showing odd pages and the other even pages, and have them in some way syncing page turns and file loads.
If you add this feature, I would buy yet another M92.
(In fact, having this feature implemented, we don't have to stop here. Why not add support for linking even more units to show three or more pages at once... I wonder how many units I would buy...
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Technically, linking could be done using wifi, unless there is a way of utilizing the USB port.