Night photography · My perfect e-paper device

E-paper devices are just appearing on the market and first users as always carry the weight of making them usable. But I believe they will make it eventually. Imagine a A5 sized device which is light, has good readability, great contrast, long battery life and contains somewhere around 100 and 500 kilos of books - almost perfect, isn’t it? Well, if I were going to spend a few hundreds on this I would like to have couple features more. After stumbling around already released and expected to release e-paper devices I collected a wish-list of features my perfect e-paper device should have:

ability to mark and write in the document with attached pen, in other words: inking (and of course saving these annotations)
any modern memory card support (CF, SD)
system wide bookmarks (for example: last page I read in huge, 700 pages book)
when reading HTML files, possibility to follow internal links (I have plenty of web pages scraps)
simple notepad with date stamping
monochrome display is fine, just make illustrations readable
software for all platforms (Mac, Linux/Unix and Win - even it that order )
price around $300-$400, not more
DELETE BUTTON! - I want to delete something from device’s memory card without turning the computer on
on screen keyboard
one day of heavy use per battery charge

Would be nice to have:

landscape mode and possibility to attach keyboard for long chunks of text
BT interface for connecting with computer, in addition to USB, not instead of
user-swapable battery
printing directly from the device (notes, annotated documents)

Things I don’t need:

sound or mp3 player, I prefer external mp3 player
wifi or any other internet connectivity - the screen is too slow to make web browsing really useful
handwriting recognition

I don’t expect that it will replace a paper notebook (although I believe for some it will) or a tablet PC. I just hope too make smaller piles of paper printed only because of uphill on-screen reading.

You can see few of this devices on MobileRead: www.mobileread.com/eink/.

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