Growl type notification on iPad/iPhone?

Growl type notification on iPad/iPhone? I want to show a non-modal/non-popup notification on top of an iPad application.

Growl's are a Mac OS X program that show little popup windows in the corner of the screen that dissappear after an amount of time or have a little x on them (to 开发者_运维百科close sooner.)

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Here is a tutorial for a sliding view.

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A custom UIView I created GCDiscreetNotificationView will setup this pretty easily.