Palm Pixi Plus - Manual (Page 20)

20 Chapter 2 : Basics
Scroll fast: Flick the screen in the desired direction.
Stop scrolling: Tap or drag the screen while scrolling.
Zoom gestures
Zoom in/pinch out to increase the size of items on the screen in Email,
Web, Photos, Doc View, PDF View, Google Maps: Place two fingers on the
screen and spread them slowly apart.
Zoom out/pinch in to decrease the size of items on the screen in Email,
Web, Photos, Doc View, PDF View, Google Maps: Place two fingers on the
screen and bring them together.