There are many ways in which the interface between humans and computers
has evolved in recent years, however I think that the biggest jumps are
about to occur.  This article is an example of just how far things
are progressing.  We are now able to isolate specific thoughts
with electrodes placed strategically around the scalp.

My thoughts are not about how to detect thoughts of walking … but
instead how the detection of thoughts can be converted to new forms of
communications.  What if I could think
about sending a message to you, and the computer would generate an
e-mail or an SMS message to you?  I actually think that research
like this is taking us closer and closer to ‘artificial telepathy’ …
technology that will allow us to ‘think’ to each other.

Computer users move themselves with the mind.
Computer scientists have created a brain-computer interface that can
read your thoughts. It allows you to stroll down a virtual street. All
you have to do is think about walking.

The technology detects brain waves by using electrodes placed at st… [KurzweilAI.net Accelerating Intelligence News]