They don't yet have Strawberry Silk pictured on their website, but they do address the question of carton size availability. Looks like there's still a little wait for a gallon of the stuff.
Can you make other flavors of Silk Soymilk (such as Strawberry, Peach, Banana or Carob Silk)?
We have recently introduced Silk Soymilk in Strawberry flavor. This product is available in our new 6.5 oz. Kid's Packs. White Wave does not currently have plans to produce additional flavored soymilks. Please continue to visit www.SilkIsSoy.com for updates on new products.