The Motley Fool offers this take (free reg. required) on the new 7-UP Plus.
First Pepsi (NYSE: PEP) and Coca-Cola (NYSE: KO) tried to outdo each other with low-carb drinks that at once left a powerful aftertaste and were of higher carb count than their diet iterations. In Coke's case, Diet Coke was the one beverage that was actually gaining market share but is now competing against itself with the company's low-carb C2.
Not to be left behind, Cadbury Schweppes (NYSE: CSG), the maker of 7-Up, is jumping into the fray with its own brand of low-carb "Un-Cola" called 7-Up PLUS, a fruity mix that will include fruit juice, calcium, and vitamin C, and will be sweetened with the artificial sweetener Splenda. It will also sport 2 grams of carbs. Apparently rejiggering the Diet 7-Up line with 0 carbs was not considered.
A national advertising campaign will roll out in October geared toward women and will include Regis Philbin and Kelly Ripa from "Live with Regis and Kelly," along with stars from the "Sex in the City" show. The drink is angling to give new meaning to "girlie drinks."
I think it is interesting that they are targeting women so much more than men. I don't know who drinks 7UP, but I think low-carb diets are followed more by men than by women.