A new peek function for the upcoming Microsoft Surface Duo foldable device has been leaked. A couple of short video clips have been shared on Twitter that show the smartphone being opened only slightly but still allowing the user to "peek" at notifications and call information on the far right-hand side of the display.
https://www.notebookcheck.net/Microsoft-Surface-Duo-peek-function-just-makes-the-foldable-device-even-more-desirable.454756.0.html
Taking calls with a tablet...while not unheard of.........