Wired’s Gadget Lab has a feature profiling a new, specifically-for-books flatbed scanner, the Plustek OpticBook 3800. The defining features of this scanner seem to be a thin bezel that allows all-the-way-to-spine scanning, and a specially padded liner to eliminate distortion.
I’m actually a bit surprised that Wired is so excited over this scanner, given that in the last couple of years we’ve already seen a number of book scanning apparatuses (both do-it-yourself and commercial) that leave a one-page-at-a-time flatbed in the dust. The future of non-destructive book scanning seems to involve digital-camera rigs that can snap shots of two facing pages at once, without requiring careful arrangement of each page. (And, as someone brings up in the comments to Wired’s article, if you don’t care about keeping the paper book you can just cut the spine off and sheet-feed it.)