Hold the icon, click the red - on each to close them. Reboot the phone...looks like a glitch, and it also looks like you have a jailbroken phone which can cause weird things to happen.
I copied a 4.2 backup over a 4.1
Here's your problem. Never restore from a backup that was made from a higher firmware or a beta. Your only fix is to restore and setup your iPhone as a new phone.
Gah, i can't do that though i will lose everything...my folders, my game saves, and everything else.
Then you'll be stuck with two Cameras and other glitches that could impact the overall performance of the iPhone.