For those of you who aren't Jewish and don't care whether it's Kosher for Passover or not, it's worth your picking some up because this is the real original formula for Coke. (Well, the pre-1985 formula, not the old original formula with cocaine in it.) It has sugar instead of corn syrup, and if you're the sort who notices the difference between Coke and Pepsi and RC and store brands, you'll notice the difference between this and "regular" Coke Classic. It's much better, and I try to stock up during Passover so I have some around the rest of the year.
I think this is the first time I've actually found the stuff in a store in Ithaca, instead of having to get it while visiting my folks for Passover. Since I'm not doing that this year (they're out of town), this is an especially nice surprise.
How do you tell? The KforP batch has yellow plastic caps with Hebrew writing on top. (It says "Kosher la-Pesach," but it should be enough for you to notice that it's not English writing.)