MIX graham crumbs and butter until blended.
MASH 1/2 cup each strawberries and raspberries in medium bowl. Beat cream cheese spread in large bowl with mixer until creamy. Gradually beat in milk. Blend in melted chocolate, mashed berries and zest. Whisk in COOL WHIP.
SPOON half the cream cheese mixture into plastic wrap-lined 9x5-inch loaf pan; top with half of the crumb mixture. Repeat layers. Freeze 6 hours or until firm.
REMOVE dessert from freezer 15 min. before serving. Finely chop remaining strawberries; combine with remaining raspberries and blueberries. Invert dessert onto platter; remove plastic wrap. Spoon berry mixture over dessert.