Yes, Thomson are offering CUN and SFB this summer (albeit just three flights), which compared to other UK departures points is a rather odd schedule. Maybe tour operators testing the Florida water again from EDI, lets hope the high prices don't put holidaymakers off!
They probably are testing the water - EDI is supposed to see long-haul flying from TOM, courtesy of the Dreamliners when they start to arrive from 2013 onwards.
Nah, the (ridiculously!) high prices haven't seemed to put folk off on their GLA flights over the years. Hopefully EDI-CUN/SFB will do well.