I have and use on a regular basis a NuvoMedia Rocket eBook PRO (I know, it's not a REB1100, but its forerunner).
I'm disappointed with the current state of the ebook devices - after all, at this moment, there's no device that can offer
- word search
- dictionary support
- adding own notes
for a price comparable to the $250 I paid for it back in 2000...