From ZOOiD Wiki
So many options yields confusion...
PASM is where the fun really is. Programmed Auto really does a nice job and is what we used for most of our party shots. Aperture Priority let us use the joystick to force that lens to f/2.0 and get some great shallow depth-of-field shots. Shutter Priority lets you set the shutter speed to freeze or blur a moving subject. And Manual mode gives you complete control of the camera, very handy with an external flash that is not dedicated.
But the most helpful feature for my street shooting is the distance display that appears in manual focus mode - it displays a yellow bar that shrinks or grows with the depth of field. This is a fantastic way to visualize your hyperfocal distance at a glance, and it takes into account aperture and zoom level.
Why doesn't digital zoom (at least) work in video mode?