Heat nonstick frying pan over medium heat.
Cut each prosciutto slice into 4 smaller rectangles.
Place squares in heated frying pan, cooking each side for 30 seconds or until crispy.
Transfer to a plate or cutting board.
Preheat broiler.
Cut plums in half along the crease; remove pit.
Cut each half of the plum in half, so that you have 4 round disks.
Sprinkle each slice with a pinch of sugar.
Transfer plum slices to a broiler pan.
Place broiler pan on rack in highest part of oven, and cook until sugar melts. (1-3 minutes)
Remove plum slices from broiler pan.
Top each plum with a scant amount of cream cheese and a prosciutto rectangle, folded as needed.