1. User Interface
Often overlooked

2. A strength of Apple Guidelines in Interface Builder
Not so much in Visual Studio

3. UI Considerations
Many times it is viewed as the ‘easy’ and ‘uninteresting’ side of Computer Science
It can make or break a device
Intuitive devices are important
The device should teach you how to use it
NO ONE reads a manual

4. Mobile considerations
Not a lot of screen real estate
Keep it simple
Use the built in controls

5. Horrible interface example

6. Functionality Problems
Windows Mobile
The ‘Close’ button doesn’t.

7. iPhone Interface Video
video-iphone-interface-complete-walkthrough/