Besides what looks like a well-executed writing and reading experience on e-paper (at last…), the live syncing of sketching looks especially promising (as shown in the video).
We decided early on to not fake anything we show, so no CGI in the product video for example. So I had to implement fully functional apps on all platforms (we now have apps for windows, macos, linux, android and ios), and at the same time fixing wifi drivers and whatnot on the device, to get a couple of seconds of video. So it is nice to see it appreciated.