Normally when you're in any kind of full-screen application in iOS, you have no access to the Status Bar unless you open up Notification Center completely.
A new free jailbreak tweak called NCStickyBar
by iOS developer Jonathan Bailey is now available in Cydia that makes it even easier and quicker to see your Status Bar in full-screen applications so you can see important information, such as the time, your cellular signal strength, your Wi-Fi signal strength, and your battery level.
Shown above, you can see how before installing the tweak, the only way to see your Status Bar would be to open Notification Center completely. On the other hand, with NCStickyBar installed, you can actually see the Status Bar in the midst of opening Notification Center without needing to open it completely.
In addition, the same logic works for the grabber that appears when you pull down from the top of the display before opening Notification Center:
As you can see, the tweak forces the Status Bar to display even when you're just pulling down from the top of the display to reveal the Notification Center grabber in full-screen applications. The Status Bar disappears at the same time that the grabber does.
NCStickyBar is a nice way to have quick access to the Status Bar in iOS when using full-screen applications, and best of all, it's nicely polished so that it works seamlessly with most full-screen applications.
NCStickyBar doesn't have any options to configure and requires iOS 7 to be installed. If you would like to give it a try, it's available for free right now in Cydia's BigBoss repository.
iPhone 5 running iOS 7.0.6