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I have just upgraded to iOS 4.2.1 and I don't have an Apple TV so there's no Airplay button, however I still have a volume slider in the multitasking bar?

What volume does that change, and whats the point of it, I can just use the hardware buttons. (I'd much rather it was a brightness slider like there is on the iPad)

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What device are you on? –  Moshe Nov 22 '10 at 21:55
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up vote 1 down vote accepted

The volume changes the volume of the audio on your device, just like the hardware volume buttons do.

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so theres no point in it? –  Jonathan. Nov 22 '10 at 22:02
    
@Jonathan - it depends on what app you are using and if that app offers a volume slider. Technically, there is no point, but there is little you can do. There is no way, AFAIK to change it into a brightness slider. Good luck! –  Moshe Nov 22 '10 at 22:20
    
well if the app doesnt have a slider you can use the hardware buttons –  Jonathan. Nov 22 '10 at 22:28
    
@Jonathan - true. I'm not arguing with you or defending Apple, I'm merely explaining how their design was implemented. –  Moshe Nov 22 '10 at 22:30
    
I know you weren't arguing. My keyboard run out of batteries and its very slow and aching to type with a mouse ;) –  Jonathan. Nov 22 '10 at 23:43
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