Just a warning and one that might come to nothing but if you absolutely rely on GPS to get you around Florida and are going before Feb 22nd, you might want to at least review the following geek article (sorry, I'm a geek).
http://www.theregister.co.uk/2011/01/20/unavailabe_gps_warning/
Although this is targeted at air traffic, there is only really one GPS system (not as clear cut as that but true enough for now!) so there is no reason to believe it won't mess with your GPS (not damage but you may find it significantly harder to get a location fix and hence navigate).
I would, however, love to know what they're testing that can knock out GPS in such a large radius unless it is actually a GPS knocking out weapon I suppose!
http://www.theregister.co.uk/2011/01/20/unavailabe_gps_warning/
Although this is targeted at air traffic, there is only really one GPS system (not as clear cut as that but true enough for now!) so there is no reason to believe it won't mess with your GPS (not damage but you may find it significantly harder to get a location fix and hence navigate).
I would, however, love to know what they're testing that can knock out GPS in such a large radius unless it is actually a GPS knocking out weapon I suppose!