02Combine 1/3 cup water, 1/3 cup sugar, and lime peel strips in small saucepan. Bring to boil over medium heat, stirring until sugar dissolves. Pour syrup into bowl. Cool to room temperature; discard lime peel.
03Using pastry brush, brush ladyfingers on both sides with syrup. Arrange in single layer in 13x9x2-inch glass baking dish, cutting to fit and covering bottom of dish completely. Pour chilled berry mixture over.
04Combine mascarpone and cream in large bowl. Using electric mixer, beat until smooth and slightly thickened (do not overbeat or mixture may curdle). Add Lime Curd; beat just until blended. Drop mascarpone topping by large spoonfuls over berry mixture. Spread evenly, covering berries completely. Cover and chill at least 8 hours. DO AHEAD: Can be made 1 day ahead. Keep chilled.
05Spoon tiramisù into bowls and serve.
06Available at some supermarkets and at specialty foods stores and Italian markets.
07** An Italian cream cheese; sold at many supermarkets and at Italian markets.