OK, first I want to suggest some features to this device:
1.
The ability to output screen to projectors. I think this will be extreemly powerful to teachers/professors in education industry. This feature can potentially replace blackboard, so teachers dont have to stand up, wielding their arms and breathing chalks. However, it might need some marketing effort in order to let them to feel this benefit. This feature can also be useful for students and people in other business industry to do presentations.
2. Sony should make an app for android/ios, or as a build-in function in their original reader app, to let user to scan their physical documents with camera, into pdf (which many apps already can do this), and then allows them to conviniently transfer the scanned pdf to this note slate wirelessly. So people can conviniently store their existing physical documents into this device.
3. Group emailing functionalities. Can be useful to conviniently distribute annotated pdfs (as attachment to the email). Also, it will be cool to allow user to hand write email content (maybe as a picture embeded in the email content) instead of traditional typing, (which I find hand writing is actually even more traditional
)
OK, that's about the feature suggestions. I also want to talk about pricing and marketing, I guess I will do this in my next reply, so I wont post something too long at a time.