open inkpot If I'm correct, is a replacement OS,or a program running in the reader?
To have support from open sources is probably a good reason to buy this type of device! Probably the only thing Sony's readers won't be having.
As far as professionalism, I think the photo's uploaded in _EA_'s attachments are about half the resolution of the screenresolution of the Iliad, so I think whatever is displayed there will be much better visible in real life than on the pictures.
With a 768x1024pix it's the best e-ink device there is so far,and enough to read a full page A4 .pdf file.
If you want more you'll have to wait for the Plastic Logics reader, according to this page: http://www.plasticlogic.com/PRPlasti...ingDevice.html
will be released in Q2 '09; but expect a high pricetag in the likes of $800.
There's another device out there the EZ-900 from Netronics also being debuted around that time.
I think it might have a resolution of 825x1200, but nothing about the resolution confirmed yet.
Plastic Logic, and 'the mentor'(EZ-900) will be your best bet.
I don't know about the EZ-900's pricetag neither. Originally it was going to be debuted at around $?600?; might be more,might be less.