I think it's great. I had heard tons about it but thought this would be some useless gadget that was awfully nice to play with and little else.
Seeing it made me change my mind. Especially for older or otherwise handicapped people who can't sit for long, have bad eyesight but are book nerds, or just generally avid readers, this might really be a much better alternative to the Kindle or similar devices.
I'll wait for the second revision, but this is something I'll definitely buy for my mom who has a huge problem holding a laptop while lying down and unable to sit either. This looks like the idea device for people with limited mobility and eyesight!