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iPhone Nano Prototype (Standby) - I designed this prototype as an interaction study on the limits of the scroll wheel (from iPod).

This prototype has two fixed points:
1. wheel
2. full-surface touchscreen

Using the wheel is a form of sliding: while tactile feedback is absent on "click" operations (virtual keyboard), this is present in some ways when sliding.

So, even if probably a touch numpad will be faster (even without feedback) I tried to see if there was a way to use the wheel for this task.

Created on 2006-10-12.
iPhone Nano Prototype (Address Book) - I designed this prototype as an interaction study on the limits of the scroll wheel (from iPod).

This prototype has two fixed points:
1. wheel
2. full-surface touchscreen

Using the wheel is a form of sliding: while tactile feedback is absent on "click" operations (virtual keyboard), this is present in some ways when sliding.

So, even if probably a touch numpad will be faster (even without feedback) I tried to see if there was a way to use the wheel for this task.

Created on 2006-10-12.
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iPhone Nano
Davide 'Folletto' Casali
Head of Design, Dachis Group • Startup Advisor • Speaker London, United Kingdom