HP ScanJet 4670 See-Thru Vertical Scanner: I was purchasing a scanner last night, and was terribly intrigued by this scanner that stands up vertically on a wire easel, is see-through, and can basically be lifted off and placed on top of anything to scan it. I almost purchased it, but I had no idea of how well the concept really works in practice. The reviews are lukewarm, so maybe it was a good decision not to get it, but it still intrigues me.