Place half of the bread cubes into a lightly greased 9 x 13 baking pan. Scatter cream cheese over bread; sprinkle with blueberries. Place remaining bread cubes over the blueberries. In a large bowl, beat together eggs, maple syrup and milk. Pour egg mixture over bread cubes. Cover pan with aluminum foil and refrigerate overnight. The next morning, preheat oven to 375°F. Bake, covered, for 25 min. Uncover and bake an additional 15-20 min., or until puffed and golden brown. Serve warm. Makes 8 servings.