IOS How to open YouTube application 

NSString *stringURL = @"http://www.youtube.com/watch?v=eIbED-knzIA";
NSURL *url = [NSURL URLWithString:stringURL];
[[UIApplication sharedApplication] openURL:url]; 
It also works with this URL (which normally brings 
the Flash video player used by YouTube): 
NSString *stringURL = @"http://www.youtube.com/watch?v=eIbED-knzIA";
NSURL *url = [NSURL URLWithString:stringURL];
[[UIApplication sharedApplication] openURL:url]; 

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