In a medium-sized bowl, whisk together the
yogurt, honey, vanilla, cinnamon, and rum. cover and refrigerate until
needed. In a 2.5 quart saucepan, combine the diced pineapple and the
pineapple juice concentrate. Bring to boil, reduce the heat, and simmer
for 5-7 minutes, stirring frequently. Allow to cool. In a large bowl,
toss and combine the pineapple mixture with the bananas and berries.
Serve in individual portions with the sauce spooned over. Alternatively,
pour a puddle of the sauce onto each plate, then pile the fruit on it.
Garnish with the mint.