Here's a minor usage tip for iPhone software/firmware 1.1.3: switching between multiple home screens doesn't require swiping (or "flicking") your finger across the display. You can also tap the area directly to the right or left of the small dots at the bottom of the screen.
As described by iPhone Atlas reader David Alford:
"As you add additional home pages to the iPhone, multiple dots start appearing just above the icon dock that by default displays the main functions of the iPhone. (Phone, Mail, Safari, Ipod) You can easily move from one home (or Springboard) screen by simply touching the area to the left or right of the white dots which represent a different home screen. That's it, no more flicking the screen right or left to move to the next screen. Just touch the active area to the right or left of the row of dots, and the screen instantly changes. Of course this won't work if you don't have multiple screens."