Absolut Berri Acai Versus Absolut LA: What's the Difference?

Both the limited edition Absolut Los Angeles and the new permanent flavor Absolut Berri Acai contain pomegranate, blueberry, and acai flavors. Are they the same flavor or different?

I asked PR representative Alison McGlone of Ketchum PR. She responded:

ABSOLUT Berri Acai is a blend of Pomegranate, Blueberry and Acai whereas ABSOLUT LA was Acai, Acerola, Pomegranate and Blueberry.

Thus, the difference is acerola, whatever that is.

I would suspect that this is just a labeling difference, but McGlone says no:

Despite the similar fruits, their aroma and taste are quite different and mix better with different ingredients as well.