Mobile Principles
From MobileDesign
When designing for mobile devices, there are a number of constraints and principles different from desktop web or applications.
[edit] Device Characteristics
Philosophically, converged communications devices are described by The Carry Principle.
Text input is hard. While this less true than it used to be, and untrue for most teenagers and young adults, it is still very true for the majority of possible users. ...
Battery power needs to be conserved.
[edit] User Interface Characteristics
Different devices have different user interfaces; the native UI should be respected when designing web sites and applications.
Nokia-style UI ...
The iPhone uses the principle of "the content is the interface." ...
Touch interface ...
Scroll-and-select interface ...
