http://www.activistpost.com/2012/09/new-pepsi-sweetener-is-mixture-of.html
If I want no calorie, I drink carbonated water. Crystal Geyser, lemon. Sometimes I'll throw in some fresh lemon juice.
Kinda nice. I don't have to pay for my lemons. I can get them from 3 different places free, one being just across the street. They're always in season in the mellow climate where the seasonal temps are getting more and more static.