In general iOS 5’s new notification banners are a good thing, but sometimes they wear out their welcome. Unfortunately, there’s no built-in method to quickly dismiss a notification banner, you just kind of have to wait until it decides to disappear.

That sounded like a job for the jailbreak community to tackle, and indeed they did. The result? NCQuickDismiss

NCQuickDismiss puts a little ‘x’ icon in the upper right-hand corner of the banner notification, and tapping it causes the banner to quickly fade from view.

There’s also an included provision that places an ‘x’ in the bottom right-hand corner of Notification Center itself, so if you don’t feel like sliding up to dismiss it, you can rely on the ‘x’ to do the dirty work instead.

If you’re jailbroken and running iOS 5, you can find NCQuickDismiss on Cydia’s BigBoss repo. Sound appealing?

Note: @hrbrt just sent me a Tweet informing me that you can quickly dismiss banner notifications without a jailbreak by simply swiping from right to left. I never knew this, but it totally makes sense. Thanks!

Here’s the video evidence. Some are reporting that this doesn’t work for them, so beware: