I just went to look at the lightwedge website. The wedge isn't very thick. I think the touchscreen could go on top of it. I would suggest actually angling the wedge and the underlying e ink screen slightly inside the case to split the thickness of the wedge. The refraction of the acrylic would alter the appearance of the e ink page anyhow. A little tweaking would minimize both the refraction and the way the wedge would stick up. The pen calibration might also need to be tweaked to account for the difference in appearance of the e ink across the wedge. But it would be a killer combination. I'd up my purchase price to $400 easy, assuming the OS was still open to developers. As someone earlier pointed out, the two aspects of the Sony Reader that are constantly beat up in reviews are the lack of lighting and lack of search. This would provide both.
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