17. The non-transitory machine readable storage medium of claim 16 , wherein the receiving the first message update initiates displaying the second message content in the first device display area and displaying first message content in the second device display area.
17. The non-transitory machine readable storage medium of claim 16 , wherein the receiving the first message update initiates displaying the second message content in the first device display area and displaying first message content in the second device display area. 18. The non-transitory machine readable storage medium of claim 17 , wherein the receiving the first message update initiates transitioning the first message content from the first device display area to the second device display area and initiates the displaying of the second message content in the first device display area.