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TouchScreen and MultiTouch screen

 
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I just saw Acer Liquid E phone, which has Android 2.2 and its multiTouch screen.
So whats the difference between TouchScreen and Multi touch screen ?
It says that it can sense touch at more than one points. So what does it mean ? Its like I have a desktop computer with more than one mouse attached to it.
But whats the point in having multi touch screen ? Whats the use ? In which situation do I need multi touch screen ?
If I touch two links with two fingers, will it open two pages at the same time ?

Thanks
 
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Multi-touch is usually used for zooming. Touch the screen with two fingers and spread them apart to zoom in (expand), or bring them together to zoom out (contract).
Here is a tutorial: http://www.zdnet.com/blog/burnette/how-to-use-multi-touch-in-android-2/1747
 
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