Unfortunately, it looks like Coca Cola Zero still has aspartame in it, along with the Splenda. Coke must have signed an oath in blood that NutraSweet would be in all of their diet products forever.
I'll stick to Diet Rite cola - or Boylan Sugar Cane cola when I occasionally want the real stuff. ;)
My impression was "Coke Zero" was distinct from "Diet Coke", -- one with NutraSweet and the other with Splenda. Oh well.
Since I've lost any craving for sweet drinks, I won't have to worry about it. Water, coffee, & beer is the fluid spectrum for me.