Designing for the iPhone

Step 1:
Decide which major navigation feature should use the finger swipe (i.e. How the user moves between pictures).

Step 2:
Figure out how an orientation change (rotating the phone) should impact the UI, preferably do something that adds value with the rotation by making better use of the space.

Step 3:
Do something slick when the user increases and decreases the viewport (I.e. What does the user want to see more or less detail of in this medium?)

More later…