Noteslate will be available in June of this year. The idea is a simplified, inexpensive ($99) notepad that mimics the experience of paper notetaking and drawing while saving your screens for use and reference later. A matte screen, a single color (options available), a flat, lightweight object.
I don’t see it being helpful in a meeting but maybe it could be a fun twist on a travel journal. Draw and write wherever you go and it’s saved for ever. And I can see the benefit of not necessarily carrying a connected device with you all the time, such as an iPad.