I have a page on my web site listing ideas for products. One I haven't put there yet, but that seems obvious, is a PDA with a camera and built in OCR software. Lots of PDA's have cameras that would be adequate for photographing a page of text. The high end ones have respectable processors, even if not up to current desktops and laptops. Think how convenient it would be if you could photograph a page, or part of a page, of a book, and have the PDA turn it into text.