No Rotation Status is your classic variety of jailbreak tweak. It does something extremely simple; tweaking an element that would probably go unnoticed to all but the most eagle-eyed iPhone user.
As its name implies, No Rotation Status gets rid of the rotation lock icon in your status bar, even when you have rotation lock enabled.
This can be especially useful for those of you sporting tweaks like Lock Info, where status bar real estate can become a matter of real concern...