Microsoft on Wednesday unveiled new Surface tablet devices with twin-screens that open like books, including a notepad-sized version that will put it back in the smartphone game next year. Surface Duo was touted as the first device in the lineup to fit into a pants pocket, with two "paper-thin" 5.6-inch screens that unfold and work in harmony with a specially tailored Windows operating system. Duo handled telephone calls, as well as applications designed to run on Google-backed Android mobile software, which powers most of the world's smartphones.

Copyright Agence France-Presse, 2019