The larger it is, the more fragile (and heavier)... at least until a new technology comes along.
Maybe those Plastic Logic screens will allow A4 size displays in a couple of years.
Meanwhile, I'd settle for an A5 screen - it's still better than printing everything!
@minimalposter - Thanks so much for the link to the info pad article. I finally have a box to fit into: "Information lover." I agree with you-- I seriously covet one of these devices. My favorite quote in the article: "Irex appears to be positioning it [the iLiad] for use in vertical professional markets. That's a little disturbing – business verticals are the place where failed consumer tech products go to die."
There seem to be mixed opinions on whether the iLiad can handle the refresh rate needed to be a true info pad, but no disagreement that the price is too high. Maybe the rumored nextgen ETI device will help. (Even the ETI 1150 comes close hardware-wise, but with no open software development environment, it's not going to mature into an info pad.)