Whisk together vinaigrette ingredients in a small bowl; cover and refrigerate until ready to serve.
Whisk together honey, lime juice and cinnamon.
Grill all fruit over medium heat for a few minutes on each side or until grill marks appear basting with honey mixture several times.
Remove from grill and place in a large bowl; let cool and chop pineapple into large chunks.
Place grilled fruit back into bowl, add vinaigrette and toss lightly to coat.
Cover and refrigerate for at least 1 hour, stirring several times.
Transfer to salad bowls or plates and top each with a dollop of mascarpone cheese.