Re: [NTLK] iPhone - Text input methods

On 12/01/2007, at 11:14 AM, Riccardo Mori wrote:
> Yes. According to an Italian journalist who was allowed to try the
> iPhone, you don't really have to _press_ on the iPhone screen. It
> detects _touch_ by finger contact, and only finger contact (so no
> gloves or any other aid like a pen or stylus).
This is called capacitive touch screen. Similar to trackpads. The
Newton uses a pressure sensitive resistive touch screen. Capacitive
touch screens are blunt in terms of accuracy, designed to detect a
change in capacitance within it's matrix of materials by the
introduction of a finger. Try touching your laptop's trackpad in two
places and letting one place go, see what the cursor does. Now,
before we lose hopes of stylii input, it is possible to replace with
a resistive touch screen and replace the driver IC to handle it, but
for the price of the iPhone, would you bother spending an extra
$150-200 for that? It might come in a later revision (fingers
crossed). Us Aussies won't even get the iPhone for quite some time as
we don't have Cingular as a network provider. It would be good with
Telstra's Next-G broadband mobile coverage, I'd hope.

Regards,
   - Adam Goddard

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