In a saucepan, heat wine, water, and sugar to boiling over medium heat. Boil and stir one minute, until sugar dissolves. Remove from heat and stir in fruit juices. Let cool.
Pour mixture into an 9 x 13 baking pan (metal works better than glass for optimal freezing). Place the pan in the freezer. Remove after 30 minutes to scrape and stir the mixture with a fork so that flaky ice crystals form. Repeat every 30 minutes until frozen to your liking.
To serve, scrape with a fork into individual bowls and serve immediately.