As promising as Blio is, your content remains locked to your PC, at least until the promised Android and iOS versions become available. Blio's handsome interface can handle complex visual material, and that may make it worth trying--if you can find the content you're looking for. But if you just want to trade in stacks of conventional hardcover or paperback books for a single, handy, easy-to-use digital device, Blio is largely irrelevant for now.

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