Open Carry was legal in Florida until the "must-issue" law in the late '80s. It was still legal after the law was passed, but the word got around that you could open carry without a license. Soon after, there was a photo in many of the major Florida newspapers showing some guy wearing a cowboy-type rig in, IIRC, Miami.
Legislative panic ensued.
Real quick, the law was changed to no-open-carry.
Considering the recent SC decisions and their previous rulings that a Conctitutional right can't be licensed, I expect the law to be changed. Don't know when.