Place the juice, honey and spices in a small pot and bring to simmer. Simmer 1 minute, and then pour into a medium bowl. Add the berries, except those for garnish, and toss to coat. Cool berries to room temperature, and then cover and refrigerate until needed. (Berries can be readied a few hours before needed.)
Set out 4, 8oz. decorative glasses. Divide and spoon half the berry mixture into the bottom of each glass. Carefully spoon a 1/4 cup of yogurt into each glass, spreading it to cover the berries. Divide and top the yogurt with the remaining berry mixture. Spoon a 1/4 cup more yogurt into each glass. Garnish the top of each portion with a few raspberries and blueberries, and a mint sprig, and serve.
Recipe Options: For a richer tasting creation, instead of no-fat yogurt, use one that does have some fat content. If you like blackberries, replace either the raspberries or blueberries with them. For another fruit taste, replace 1 cup of the berries with 1 cup of diced, ripe nectarine.