Tap, point, and shoot: Touch-screen digital cameras.

Aside from their "wow" factor, there are good reasons for adding touch controls to point-and-shoot cameras. For one, there's the convenience of being able to simply tap an icon with your fingertip to make a fast setting change. Also, you get unique features like being able to select what you want to focus on just by tapping on the subject in the display. Nikon's S70, Samsung's TL225 and TL220, and the higher-end interchangeable-lens Panasonic Lumix DMC-G2 let you focus and shoot through the touch interface.

In playback mode, manufacturers have made it easy to flip through images by dragging your finger across the screen or zoom in on an area with a tap. Some models also give you the ability to write on a photo and save a copy, which can be both fun and practical.

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Source: Cnet