The problem with your question is the same as the first; without specifics
not only about which particular technology about which your asking or
without any means of testing, it is impossible to answer.
"Necessity is the mother of invention." Many of these nascent technologies
apply to very specific needs. If the need arises on a mass basis, I'm sure
some of them will be developed and implemented as they apply in future
Windows OS's or whatever might replace it in the future. However, many
don't seem to apply specifically in that area. There's no way to make a
blanket answer because there are too many differing applications and
approaches.
Then. there's a question of processing power and memory and how much will be
required by the specific application of the technology and what will that
drain from other basic and perhaps more necessary functions of the OS.
We have motorized wheelchairs but not everyone who needs a wheelchair has
such a requirement, that's why not all wheelchairs have such a capability
and why not all wheelchair companies offer them. That goes back to the
original question. If something has a broad enough application and is
something that is fundamental to an operating system, it will likely be
incorporated over time. Microsoft, IBM, MIT and others have been working on
voice input, which in and of itself will be revolutionary if it can be
pulled off as it would represent a quantum leap in voice and language
recognition technology.
However, many businesses may not want such an approach and may respond
negatively so such input may only be practical for highly specialized uses.
In this day of identity theft and intellectual property theft, individuals
and companies may not want to avail themselves of this type of input which
qualifies under your initial question. There are of course others but many
of them are highly specialized and may only have application in the medical
field.
You've posed too open ended a question, it is not a single technology and
practicality is governed by need versus cost and what it brings to the
system as well as what resources it might drain.
--
In memory of our dear friend, MVP Alex Nichol.
Michael Solomon MS-MVP
Windows Shell/User
https://mvp.support.microsoft.com/communities/mvp.aspx
Backup is a PC User's Best Friend
DTS-L.Org:
http://www.dts-l.org/