I'd probably buy one, mostly because there is no other e-ink laptop available yet. Regarding battery life, since you've got LTE on board, you'd be better off by offloading the processing to a remote server and connecting via ssh, vnc etc. imo. See also similar art: http://www.paperterm.org/notes.html https://news.ycombinator.com/item?id=28432921 and https://www.modos.tech