Touchscreen requirements

[C. Scott Ananian]

On Tue, Jun 8, 2010 at 9:23 AM, John Watlington <wad at laptop.org> wrote:
> An interesting effect I've noticed is that with some touchscreen, you get smooth
> lines when moving your finger at a "normal speed", say 8 cm/s, but when you slow
> down (1 cm/s) the line wiggles around.

See http://labs.moto.com/robot_touchscreen_analysis/

"Strength" of touch also matters a great deal, and there's quite a bit
of fudging being done in the hardware tracking algorithms.
  --scott

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