Dane Storrusten suggested that the trackpad is a step backwards from
the "direct" interface of the iPhone screen.  There's been a
long-recognized problem with "direct" interfaces when the human
fingers are involved: they cover up what you're working on.  When
using the iPhone, for example, it's pretty much an act of faith that
your finger is over the desired character before selecting it.

Apple has provided a work-around, by having the character blow up in
size and appear higher on the screen to provide feedback, but, in
real life, "typing" is a lot faster if you just take your chances
and correct errors until you get fluid at the task.

"Indirect" interfaces,such as the trackpad, eliminate this problem
by substituting, on the screen, a small pointer for the giant finger,
so the desired target is not obscured.

I'm not arguing against "direct" interfaces; I simply seek to
suggest there are strengths and weaknesses.


. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Posted from the new ixda.org
http://www.ixda.org/discuss?post=24564


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