Honey, I shrunk the computer is this week's ITWorld e-Business in the Enterprise article.
As computers shrink, they also seem to explode into pieces because we are not shrinking with them. Screens, keyboards need to be a certain size to be useful to us humans.
As the "brains" of machines continue to shrink, the end-user manifested differences between, say a CPU with 10 GIG of RAM and a mere identity token for logging on to a real computer shrinks too. To the point where maybe normal folk cannot tell the difference. This is good (I think).