Think of the currently on "life support" and infamous Readius then use that same flexible panel tech for a "dual screen" reader device. You can have what amounts to a folding device but is actually a single sheet panel which can, as the use wants, be used as a two page panel, single page or however it works best. Only thing I see as an issue it the ability to integrate a touch interface into such a device....but I think it would be a super design as these things evolve. For now a couple panels that can be tethered or used independently/individually.
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