This is a grey subject that still has no official answer. I too am carrying with only my Florida permit right now since the courthouse was closed today to pick up my renewal. SOme people say it is fine, others say you should not.
According to the Florida web page..."Florida issues concealed carry licenses to qualified individuals regardless of whether or not they are Florida residents. MICHIGAN and NEW HAMPSHIRE will honor the Florida license ONLY IF the license holder is a legal resident of Florida"
There is no mention of PA.
I also wonder that since I am approved to pick up my new PA permit, that I am officially covered from the date of approval even though I may not posses the actual license?