You can do better, Coke

Why is it that Coca-Cola can sport this many coffee-in-a-can drinks in Japan, but they best they can do state-side is Blak? Sure, I haven't tried Blak yet, but I've heard rumors that it's arond $2 a bottle, and that there is cola in it....
Update: Perhaps I spoke too soon. Nate snagged some from a gas station at around $1.50 for an 8oz bottle. It is sweet, and I think would make a lovely after dinner desert drink. At 45 calories, that's a dessert that fits in anyone's diet.