Requires iOS 5.1 or higher
5.1 gave a new look for the camera button and now works as dragging, if you don't like the new look of it, and want back the original camera button, you might like Redire
Redire allows you to put back the original camera button, just like iOS 5.0.1.
Special thanks for iPyth0n for the idea (iPyth0n's Twitter: @iPyth0n)
No options to configure.