When the pinch interaction was demo-ed with iPhone, I had a pretty
positive response, but as I thought more about it and discussed with a
few colleagues around, I am not sure if that kind of interaction would
be very useful in a small device, or any other device where only one
hand is used.
I see interactions like sliders, scrollbars, light switches, joysticks
etc.. where people control the "degree" of something.. These are what
people are used to, where one end is fixed and other can be dragged to
control the value. In a Pinch interaction, two fingers have to be used
simultaneously and together the fingers overlap/hide 30-50% of the
In large displays however the two hands are used , which we are used
to of, and they do not cover as large an area of content.
Nevertheless the idea behind this mail to explore and not conclude..
Thoughts? And how would we test effectiveness of such interaction?