Many people have taken as a given that, with the introduction of Windows 8, touch is now the future; however, the reality is that PC makers and others see this as merely a part of ongoing development:
PC Makers Bet on Gaze, Gesture, Voice, and Touch | MIT Technology Review[Products that could make it common to control a computer, TV, or something else using eye gaze, gesture, voice, and even facial expression were launched at the Consumer Electronics Show in Las Vegas this week. The technology promises to make computers and other devices easier to use, let devices do new things, and perhaps boost the prospects of companies reliant on PC sales. Industry figures suggest that interest in laptop and desktop computers is waning as consumers’ heads are turned by smartphones and tablets.
The interesting thing is that many of the designers are working on making these features retrospective, so that they can be used with any device (within reason); hey effectively become like another peripheral device such as a mouse and keyboard. We just need a computer/brain mind-meld and problem solved.