A recently published patent filed by Microsoft describes in detail the hinge mechanism supporting a pop-up dual-surfaced foldable display. The patent also hints towards edge display notifications.
Dual-display RSS
Intel's 'Tiger Rapids' prototype aims to serve as an inspiration for PC makers on how to make a dual-screen PC, likely along the vein of the much-awaited Andromeda tablet from Microsoft
Asus has announced a rather interesting dual-screen laptop dubbed Project Precog at Computex 2018. The machine is powered by AI and machine learning and might be released sometime next year.
Yota produced a truly innovative product with the YotaPhone, and Chinese manufacturer Oukitel is looking to get in on the action. The Oukitel U6, coming in August, also features two displays.