The introduction of consumer products with full-size touchscreen keyboards offers a unique opportunity to allow for the deprecation of the QWERTY layout in an incremental manner.

Software can relatively easily allow for any keyboard layout one can imagine. Now users may elect to employ layouts that are not specifically designed to restrict input rates.

As a user gets comfortable with the mechanics of touchscreen interfaces it’s not hard to imagine exponential growth in efficiency of data input with more sensible layouts. Individual users could even customize layouts to suit their particular sensibilities and preferences.

A generation of users who start off on touchscreen keyboards will not suffer the dissonance we experience without the tactile feedback of physical keys. Some current users will adapt via pure will and practice, evolving significantly in a single lifetime.
And soon, no more QWERTY required. Yay!