I am somehow reminded of a snippet of a Jesse Schell talk back in 2010 [1] when he predicted convergence of technology in the pocket ... I, too, suspect devices are going to converge towards a device that can be held with both hands, has maximum screen real-estate and still fits in a pocket. One hand usage seems less important as the hold-to-ear phone aspect is slowly phased out as a valid use-case for these devices.

[1] http://www.realtimetranscription.com/showcase/DICE2010/Jesse...