Pine64 unveiled a new keyboard case for the PinePhone. While the pictures and videos do not show the case working at this point, they show the design of the case. The beveled keys and included 6000 mAh battery make the case thick, but it may present a convenient package for those in search of a small Linux laptop.
https://www.notebookcheck.net/Pine64-s-new-keyboard-case-turns-the-PinePhone-into-a-pocketable-Linux-laptop.535230.0.html