Yes, but the e-ink screen was on the wrong side of the device. People like me and the author need an e-ink display for writing in broad sunlight.
What Lenovo need to do is to make a hybrid version of the ThinkBook Plus and ThinkPad Twist, and rename it as Lenovo BookPad for laptop with a twist-able dual e-ink and conventional monitors [1].
Probably not what you are looking for, but this: https://getfreewrite.com could be good for you.
Thanks a lot for the link! So this is like a remake of the Alpha Smart but with e-ink screen. Apart from the price it's nice but unfortunately I need one Windows program running on such a device (a specialized Word processor with features no other word processors have).