2. Yes, it can be rooted, but no one release root (debugging) pass, and there's no rooted firmware (but you can do it by yourself if you good in linux administration).
1. No much, as I want it to be. E-ink only work with PDF and EPUB, so you can't transfer anything else to e-ink currently (hope next release will give us more features). But you can transfer anything from e-ink to LCD display.
3. No, there's no multutach.
4. Don't need this, so someone else answer this
5. In current state I'll give device 3 of 5, but when there will be more programmers\linux\c geeks (or at list when SDK will be released) it will allow full interaction between displays, and I'll give it 5 of 5.