Joko: I've looked at your description of a 'sweet pizza' and decided that it comes very close to some 'cheesecakes' that I've tried. (There seems to be a point where the two culinary ideas meet).
Pastafreak: I'm pleased to see that you believe in 'respecting culinary traditions'. I hope, however, that you don't do so like a friend of mine. He insists on having only 'genuine Italian' ingredients on his pizzas but he then asks for 'deep pan' pizza. I can't get him to understand that he'd get blank looks (or possibly thrown out!) if he asked for that in my favourite restaurant in Genoa ;-)
However, the idea of a 'sweet pizza' is not in conflict with traditional Italian food. 'Schiacciata' tastes great!
http://www.abc.net.au/perth/stories/s1859056.h tm
Chris